{"title":"Central Heating Chemicals","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eCentral heating chemicals cover the full clean-protect-maintain cycle for domestic and light commercial heating systems: system cleansers that remove flux residue, magnetite sludge and limescale deposits, corrosion inhibitors that provide long-term protection once a system is clean, and specialist treatments for noisy systems, leaks and solar or heat pump circuits. Correct chemical treatment is one of the most cost-effective ways to protect boiler warranties, prevent pin-holing, and maintain efficient heat transfer across radiators and heat exchangers. This category is built around the Sentinel range, with further trusted brands to follow.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eNew system commissioning\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eSystems up to six months old still contain flux residue, jointing compound and installation debris from soldering and pipework. Left untreated, this residue accelerates corrosion and copper deposition on heat exchangers. \u003cstrong\u003eSentinel X300\u003c\/strong\u003e is formulated specifically for this pre-commissioning stage, flushing out flux and swarf before the system is dosed with a long-term inhibitor. Skipping this step on a new install is one of the most common causes of early boiler warranty claims relating to internal corrosion.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eExisting system cleaning and sludge removal\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eOlder systems accumulate magnetite (black iron oxide sludge) that restricts flow, causes cold spots on radiators, and forces pumps and boilers to work harder — increasing fuel consumption and noise. \u003cstrong\u003eSentinel X400\u003c\/strong\u003e is the standard rapid-clean treatment for existing systems, breaking down and dispersing sludge ahead of a power flush or drain-down. For heavily fouled systems, \u003cstrong\u003eSentinel X800\u003c\/strong\u003e is a heavy-duty formulation designed for use with power flushing equipment, giving faster results where deposits are severe or the system has never previously been treated.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eLong-term corrosion protection\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eOnce a system has been cleansed and flushed, it must be refilled with a corrosion inhibitor — this applies to both open-vented and sealed systems, including combi boiler installations. \u003cstrong\u003eSentinel X100\u003c\/strong\u003e protects against limescale and corrosion in clean systems and is compatible with the full range of boiler materials, including aluminium heat exchangers common on modern condensing combis. Note that softened water is not suitable for filling a heating system unless treated with a suitable inhibitor, as it lacks the natural mineral protection of untreated mains water.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eNoise reduction and leak sealing\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWhere a system has audible kettling or banging caused by limescale on the heat exchanger, \u003cstrong\u003eSentinel X200\u003c\/strong\u003e is added alongside X100 inhibitor to reduce noise without the need for a full descale in every case. For systems suffering minor weeps at joints or seals, \u003cstrong\u003eSentinel\u003c\/strong\u003e leak sealer products offer a chemical alternative to remedial plumbing work on hard-to-access pipework, though this should not be treated as a substitute for repairing a known mechanical fault.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eSolar thermal and heat pump systems\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBeyond conventional gas and LPG central heating, the range extends to \u003cstrong\u003eSentinel R100\u003c\/strong\u003e solar thermal fluid, \u003cstrong\u003eR200\u003c\/strong\u003e solar system cleaner, and dedicated heat pump fluids (\u003cstrong\u003eR500\u003c\/strong\u003e, \u003cstrong\u003eR600\u003c\/strong\u003e) and flushing products (\u003cstrong\u003eR800\u003c\/strong\u003e) for ground and air source installations — reflecting the wider mix of heat sources now common across UK domestic properties.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eSpecifying the right treatment\u003c\/h4\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eNew system (under 6 months):\u003c\/strong\u003e X300 cleanser, followed by X100 inhibitor\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eExisting system, general maintenance:\u003c\/strong\u003e X400 cleanser, followed by X100 inhibitor\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eHeavily sludged system \/ power flush:\u003c\/strong\u003e X800 cleanser\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eNoisy boiler or heat exchanger:\u003c\/strong\u003e X200 alongside X100\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSoftened water systems:\u003c\/strong\u003e inhibitor treatment is mandatory, not optional\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eFor maximum protection, cleaning and inhibitor chemicals are best combined with a magnetic filter to capture debris on an ongoing basis — see our \u003cstrong\u003e[Magnetic Filters]\u003c\/strong\u003e collection. Systems showing persistent sludge despite chemical treatment may also benefit from a full \u003cstrong\u003e[Power Flushing Equipment]\u003c\/strong\u003e setup, and hard water areas should be cross-referenced with our \u003cstrong\u003e[Scale Inhibitors]\u003c\/strong\u003e range for whole-system limescale prevention.\u003c\/p\u003e","products":[{"product_id":"adey-procheck-digital-water-test-kit-smartphone-central-heating-water-analysis-cp1-03-5132","title":"ADEY ProCheck Digital Water Test Kit - Smartphone Central Heating Water Analysis - CP1-03-5132","description":"\u003cdiv style=\"font-size:16px; max-width:900px; line-height:1.6; color:#1a1a1a;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eADEY ProCheck Test Kit\u003c\/strong\u003e (MPN \u003cstrong\u003eCP1-03-5132\u003c\/strong\u003e) is the UK's first digital central heating water test kit, replacing traditional dip-strip guesswork with \u003cstrong\u003einstant lab-style results delivered straight to a smartphone\u003c\/strong\u003e. Within roughly a minute of taking a system water sample, ProCheck measures the four parameters that most influence boiler breakdown risk: \u003cstrong\u003einhibitor concentration, corrosion, pH, and turbidity\u003c\/strong\u003e. Results are analysed by the ADEY ProCheck app and uploaded automatically to the \u003cstrong\u003eADEY Sense® reporting portal\u003c\/strong\u003e, giving installers an independently verifiable record of system health for every job.\u003c\/p\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e\u0026lt;2 Min\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eTest Time\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e4\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eParameters Tested\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eKIWA Gastec\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eVerification\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e12 Months Free\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eReport Storage\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eReusable Case\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eKit Format\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eAny Inhibitor\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCompatible With\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eUniversal Compatibility\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eADEY ProCheck is \u003cstrong\u003edesigned to work best with ADEY chemicals\u003c\/strong\u003e but will also provide results where other certified water treatment chemicals have been used, making it suitable for testing systems regardless of which inhibitor brand was originally installed.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #b8860b; background-color:#fdf6e3; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#b8860b;\"\u003eSubscription Note\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eThe kit includes \u003cstrong\u003e12 months of free access\u003c\/strong\u003e to the ADEY Sense Report Management System from date of activation. Continued report generation and portal access beyond this period is subject to subscription renewal.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #c0392b; background-color:#fdecea; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#c0392b;\"\u003eBS 7593:2019 Compliance\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eADEY ProCheck is \u003cstrong\u003edesigned to support compliance with BS 7593:2019\u003c\/strong\u003e, the British Standard for treatment of water in domestic hot water central heating systems. Engineers should still follow full best-practice cleaning and dosing procedures alongside testing.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eDigital Lab-Style Accuracy\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eOffers a \u003cstrong\u003ehigher level of accuracy than traditional on-site dip-testing\u003c\/strong\u003e, using connected app technology to interpret test strip results rather than relying on manual colour-matching by eye.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eFour-Parameter Analysis\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eTests \u003cstrong\u003einhibitor, corrosion, pH and turbidity\u003c\/strong\u003e in a single sample, giving a fuller picture of system water health than single-parameter dip tests.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eIndependent Validation\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eResults are \u003cstrong\u003everified by KIWA Gastec\u003c\/strong\u003e, an independent testing body, confirming that the ProCheck procedure and its underlying data set represent true system performance.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eInstant Reporting\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eA \u003cstrong\u003efull results report is emailed instantly\u003c\/strong\u003e and stored in the ADEY Sense portal, giving engineers a permanent, searchable record for every property visited.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eFast On-Site Workflow\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eThe entire process - \u003cstrong\u003esample, test strip, scan, report\u003c\/strong\u003e - is designed to be completed in a single site visit, minimising callbacks and admin time.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eRecommendations Included\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eWhere water quality falls outside target ranges, the app provides \u003cstrong\u003ecorrective action recommendations\u003c\/strong\u003e directly to the engineer's phone.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n        \n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eProduct Identity\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eADEY Innovation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eProduct Name\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eADEY ProCheck Universal Digital Water Test Kit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMPN\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eCP1-03-5132\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eTest Parameters\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eParameters Measured\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eInhibitor level, corrosion, pH, turbidity\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eTest Duration\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eUnder 2 minutes per test\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eResult Delivery\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eADEY ProCheck smartphone app\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eVerification \u0026amp; Reporting\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eIndependent Verification\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eKIWA Gastec tested and verified\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eReporting Platform\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eADEY Sense® portal\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eIncluded Subscription\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e12 months report generation \u0026amp; portal access\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eCompatibility\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003ePrimary Use\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eOptimised for ADEY chemical treatment systems\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eOther Chemicals\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAlso provides results with other certified water treatment chemicals\u003c\/td\u003e\n          \u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cdiv style=\"margin:24px 0;\"\u003e\n        \n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat does the ADEY ProCheck kit actually measure?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIt measures four key water quality parameters: \u003cstrong\u003einhibitor concentration, corrosion, pH level, and turbidity\u003c\/strong\u003e - the main contributors to boiler and radiator breakdown in central heating systems.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow long does a test take?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eA complete test, from taking the sample to receiving a validated report on your phone, takes \u003cstrong\u003eunder two minutes\u003c\/strong\u003e.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eDo I need to use ADEY chemicals for this to work?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eNo. ProCheck is designed to work best with ADEY products but will \u003cstrong\u003ealso provide valid results where other certified water treatment chemicals have been used\u003c\/strong\u003e in the system.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat happens to my test results?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eEach result is \u003cstrong\u003eemailed instantly\u003c\/strong\u003e and automatically uploaded to the ADEY Sense® portal, where all historic reports can be reviewed and resent at any time.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eIs the app subscription included?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes, the kit includes \u003cstrong\u003e12 months of free access\u003c\/strong\u003e to report generation and the ADEY Sense Report Management System from first use.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003c\/div\u003e\n\u003c\/div\u003e","brand":"ADEY","offers":[{"title":"Default Title","offer_id":65282824044893,"sku":"CP1-03-5132","price":127.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/ADEYProCheckDigitalWaterTestKit-SmartphoneCentralHeatingWaterAnalysis-CP1-03-5132.jpg?v=1784302185"},{"product_id":"sentinel-x100-quick-test-kit-2-tests-inhibitor-concentration-check","title":"Sentinel X100 Quick Test Kit (2 Tests) - Inhibitor Concentration Check","description":"\u003c!-- SEO Product Name: Sentinel X100 Quick Test Kit (2 Tests) - Inhibitor Concentration Check - X100T-QT-GB --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; line-height:1.6; color:#1a1a1a;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSentinel Quick Test Kit\u003c\/strong\u003e (MPN \u003cstrong\u003eX100T-QT-GB\u003c\/strong\u003e) is a simple, disposable, colour-comparison test for confirming that \u003cstrong\u003eSentinel X100 Inhibitor\u003c\/strong\u003e has been dosed at the correct concentration within a sealed central heating system. Once a system has been cleaned and protected with X100, this kit gives installers and service engineers an \u003cstrong\u003eon-site check within minutes\u003c\/strong\u003e, providing reassurance that the customer's system is properly protected against the two leading causes of central heating inefficiency: \u003cstrong\u003elimescale and corrosion\u003c\/strong\u003e.\u003c\/p\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e2\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eTests Per Kit\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eColour Comparison\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eTest Method\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eMinutes\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eResult Time\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eX100 Level\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eChecks\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eDisposable\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eFormat\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eServicing \u0026amp; Commissioning\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eUse Case\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eRoutine Servicing Tool\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eDesigned for \u003cstrong\u003eroutine servicing, commissioning checks and maintenance visits\u003c\/strong\u003e where a quick confirmation of X100 inhibitor concentration is needed rather than a full multi-parameter water analysis.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #b8860b; background-color:#fdf6e3; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#b8860b;\"\u003eProduct Specific\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eThis kit is formulated specifically to test for \u003cstrong\u003eSentinel X100 Inhibitor\u003c\/strong\u003e concentration. It is not a general water quality or multi-parameter test - for broader analysis of inhibitor, corrosion, pH and turbidity together, a digital test kit such as ADEY ProCheck should be used instead.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eFast Dosage Confirmation\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eGives a \u003cstrong\u003equick, disposable check\u003c\/strong\u003e that Sentinel X100 Inhibitor is present in the system at a sufficient concentration to provide ongoing protection.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eSimple Colour-Match Process\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eUses a \u003cstrong\u003etest tube, tablets, and colour comparison chart\u003c\/strong\u003e - no smartphone or app required, making it a low-cost option for a rapid on-site check.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eIdeal for Aftercare Visits\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eWell suited to \u003cstrong\u003eroutine service and maintenance visits\u003c\/strong\u003e, giving engineers a documented reason to reassure customers their system remains protected.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eReady for Repairs\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eUseful during \u003cstrong\u003eemergency repairs or quick fixes\u003c\/strong\u003e where confirming existing inhibitor levels quickly helps decide whether a top-up dose is required.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eCompact and Portable\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eSmall, lightweight kit that \u003cstrong\u003efits easily in a van or tool bag\u003c\/strong\u003e alongside other water treatment testing equipment.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eTwo-Test Capacity\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eSupplied with enough tablets and materials for \u003cstrong\u003etwo separate on-site tests\u003c\/strong\u003e, covering two visits or a retest where needed.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n        \n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eProduct Identity\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel (Sentinel Performance Solutions)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eProduct Name\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel X100 Quick Test Kit\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMPN\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eX100T-QT-GB\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eKit Contents\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eTest Tube\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSentinel No. 1 Tablets\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e2\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSentinel No. 2 Tablets\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e2\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eColour Comparison Chart\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eTests Per Kit\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e2\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003ePhysical Specification\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eWidth\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e60mm\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eLength\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e110mm\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eHeight\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e250mm\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMaterial\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003ePlastic\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eApplication\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eTests For\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel X100 Inhibitor concentration\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSuitable For\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eFast inhibitor verification, emergency repairs, quick fixes\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eCertifications Met\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eBenchmark\u003c\/td\u003e\n          \u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cdiv style=\"margin:24px 0;\"\u003e\n        \n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat does the Sentinel Quick Test Kit actually check?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIt checks that a central heating system treated with \u003cstrong\u003eSentinel X100 Inhibitor\u003c\/strong\u003e has been dosed to a sufficient concentration for proper ongoing protection against limescale and corrosion.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow many tests are in one kit?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eEach kit contains enough tablets and materials to carry out \u003cstrong\u003etwo separate tests\u003c\/strong\u003e (1 test tube, 2 No.1 tablets, 2 No.2 tablets, and a colour comparison chart).\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eCan this test other Sentinel or third-party chemicals?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eThis kit is formulated \u003cstrong\u003especifically for Sentinel X100 Inhibitor\u003c\/strong\u003e. It is not designed as a general multi-brand or multi-parameter water quality test.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhen should I use this instead of a digital test kit?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIt's ideal for a \u003cstrong\u003equick, low-cost concentration check\u003c\/strong\u003e during routine servicing or a repair visit. For a fuller picture including corrosion, pH and turbidity, a digital kit such as ADEY ProCheck may be more appropriate.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eIs any equipment needed to read the results?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eNo. Results are read using the \u003cstrong\u003esupplied colour comparison chart\u003c\/strong\u003e - no smartphone, app, or additional equipment is required.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sentinel","offers":[{"title":"Default Title","offer_id":65282900525405,"sku":"X100T-QT-GB","price":7.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SentinelX100QuickTestKit_2Tests_-InhibitorConcentrationCheck.jpg?v=1784302842"},{"product_id":"sentinel-x100-inhibitor-1-litre-tripletech-anti-corrosion-central-heating-protection","title":"Sentinel X100 Inhibitor 1 Litre - TripleTech Anti-Corrosion Central Heating Protection","description":"\u003cdiv style=\"font-size:16px; max-width:900px; line-height:1.6; color:#1a1a1a;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSentinel X100 Inhibitor\u003c\/strong\u003e (MPN \u003cstrong\u003eX100\u003c\/strong\u003e) is a leave-in, general-purpose treatment providing \u003cstrong\u003etotal protection against corrosion and limescale\u003c\/strong\u003e in all types of indirect central heating systems, including those containing aluminium components. Built on \u003cstrong\u003eTripleTech™ Anti-Corrosion Technology\u003c\/strong\u003e, a blend of three heavy-duty specialist corrosion inhibitors, X100 targets the different metal types typically found across a multi-metal heating system, extending equipment life and helping maintain fuel efficiency.\u003c\/p\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1 Litre\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003ePack Size\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1% of System Volume\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eDose Rate\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e100 L of System Water\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCoverage\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eTripleTech™\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eTechnology\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eNot Unless Drained\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eReplacement Needed\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eHard \u0026amp; Soft\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eWater Suitability\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eDose Rate\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003e\n\u003cstrong\u003e1 litre of Sentinel X100 treats 100 litres of system water\u003c\/strong\u003e (1% dose rate). Larger systems require proportionally more product.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #c0392b; background-color:#fdecea; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#c0392b;\"\u003ePre-Treatment Cleaning Required\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eFor best results, systems should be \u003cstrong\u003ecleaned and flushed in accordance with BS 7593\u003c\/strong\u003e before dosing: use \u003cstrong\u003eSentinel X300\u003c\/strong\u003e for new systems and those up to 6 months old, or \u003cstrong\u003eSentinel X400 \/ Sentinel X800\u003c\/strong\u003e for existing systems.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #b8860b; background-color:#fdf6e3; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#b8860b;\"\u003eNoisy Boiler Note\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eIf the system is \u003cstrong\u003ealready noisy due to limescale deposits\u003c\/strong\u003e in the heat exchanger, \u003cstrong\u003eSentinel X200\u003c\/strong\u003e should be added together with X100 rather than X100 alone.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eTripleTech™ Anti-Corrosion Technology\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eA \u003cstrong\u003eunique blend of three heavy-duty specialist corrosion inhibitors\u003c\/strong\u003e, each targeting a different metal type, delivers protection across multi-metal heating systems rather than a single generic formula.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eNever Needs Replacing\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eOnce added, Sentinel X100 \u003cstrong\u003enever needs to be replaced unless the system is drained down\u003c\/strong\u003e, giving genuine leave-in, long-term protection.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eAll-Metal, All-Water Compatibility\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eSuitable for use in \u003cstrong\u003eall types of indirect central heating system\u003c\/strong\u003e, including those with aluminium, and effective in \u003cstrong\u003eboth hard and soft water\u003c\/strong\u003e areas.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003ePrevents Hydrogen Gassing\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eHelps \u003cstrong\u003eprevent the formation of hydrogen gas\u003c\/strong\u003e within the system, a common cause of aluminium component corrosion and system noise.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003epH-Neutral Formulation\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eA \u003cstrong\u003epH neutral formulation\u003c\/strong\u003e that protects system metals without introducing the corrosive risks associated with acidic or highly alkaline treatments.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eEnergy Saving Trust Recommended\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eX100 is an \u003cstrong\u003eEnergy Saving Trust Recommended\u003c\/strong\u003e product, reflecting its role in maintaining boiler efficiency and reducing energy waste from scale and corrosion.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n        \n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eProduct Identity\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel (Sentinel Performance Solutions)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eProduct Name\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel X100 Inhibitor\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMPN\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eX100\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eDosage\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eDose Rate\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1% of system volume\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eStandard Treatment\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 litre per 100 litres system water\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eLarger Systems\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAdditional X100 required proportionally\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eFormulation \u0026amp; Composition\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eChemistry\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAqueous solution of inorganic and organic corrosion and scale inhibitors\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003epH\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNeutral formulation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eWater Suitability\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eHard, soft and artificially softened water\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eTechnology\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eTripleTech™ Anti-Corrosion Technology\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eApplication \u0026amp; Compatibility\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSystem Types\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAll types of indirect central heating system, including aluminium\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003ePotable Water Use\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNot for use in potable water systems\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003ePre-Treatment\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNew\/young systems: Sentinel X300; existing systems: Sentinel X400 or X800\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eNoise Complement\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAdd with Sentinel X200 if boiler noise present\u003c\/td\u003e\n          \u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cdiv style=\"margin:24px 0;\"\u003e\n        \n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow much X100 do I need for my system?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003e\n\u003cstrong\u003e1 litre of Sentinel X100 treats 100 litres of system water\u003c\/strong\u003e - a 1% dose rate. Larger systems require proportionally more product.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eDoes X100 need to be cleaned out and replaced periodically?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eNo. Once added, Sentinel X100 \u003cstrong\u003enever needs to be replaced unless the system is drained down\u003c\/strong\u003e.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eDo I need to clean the system before adding X100?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes, for best results. Use \u003cstrong\u003eSentinel X300 on new systems or those up to 6 months old\u003c\/strong\u003e, or \u003cstrong\u003eSentinel X400 \/ X800 on existing systems\u003c\/strong\u003e before dosing with X100.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eIs X100 suitable for systems with aluminium components?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes, X100 is \u003cstrong\u003esuitable for use with all commonly encountered metals and alloys, including aluminium\u003c\/strong\u003e.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat should I do if my boiler is noisy?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIf noise is caused by \u003cstrong\u003elimescale deposits in the heat exchanger\u003c\/strong\u003e, add \u003cstrong\u003eSentinel X200\u003c\/strong\u003e together with X100.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eCan X100 be used in potable (drinking) water systems?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eNo. Sentinel X100 is \u003cstrong\u003enot for use in potable water systems\u003c\/strong\u003e - it is intended for closed central heating circuits only.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sentinel","offers":[{"title":"Default Title","offer_id":65282919039325,"sku":"X100","price":14.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SentinelX100Inhibitor1Litre-TripleTechAnti-CorrosionCentralHeatingProtection.jpg?v=1784303199"},{"product_id":"sentinel-x200-boiler-silencer-1-litre-non-acid-kettling-noise-treatment","title":"Sentinel X200 Boiler Silencer 1 Litre - Non-Acid Kettling Noise Treatment","description":"\u003c!-- SEO Product Name: Sentinel X200 Boiler Silencer 1 Litre - Non-Acid Kettling Noise Treatment - X200 --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; line-height:1.6; color:#1a1a1a;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSentinel X200 Boiler Silencer\u003c\/strong\u003e (MPN \u003cstrong\u003eX200\u003c\/strong\u003e) is a non-acid, leave-in treatment for the elimination of \u003cstrong\u003eboiler noise, commonly known as \"kettling\"\u003c\/strong\u003e, caused by limescale deposits on the heat exchanger surface. Suitable for use in all types of indirect central heating systems, X200 is \u003cstrong\u003egentler than acid-based descalers\u003c\/strong\u003e while remaining highly effective at reducing noise and restoring boiler efficiency, helping to quickly pay for itself through reduced fuel usage.\u003c\/p\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1 Litre\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003ePack Size\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1% of System Volume\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eDose Rate\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eUp to 10 Radiators\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCoverage\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eNon-Acid\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eFormulation\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eLeave-In\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eTreatment Type\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eISO 9001\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eQuality System\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eDosage\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003e\n\u003cstrong\u003e1 litre of Sentinel X200 treats a typical domestic system of up to 10 radiators.\u003c\/strong\u003e Larger systems should be dosed with twice this amount, i.e. 1% of system volume.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #b8860b; background-color:#fdf6e3; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#b8860b;\"\u003eCheck for Mechanical Causes First\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eMany noise problems are caused by \u003cstrong\u003esystem design or mechanical faults\u003c\/strong\u003e rather than limescale. It is important to rule these out before applying a chemical solution. If noise is caused by \u003cstrong\u003esludge (iron oxide corrosion debris)\u003c\/strong\u003e rather than limescale, the system should instead be cleaned and flushed with a suitable Sentinel cleaning product.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eUse Alongside Inhibitor\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eSentinel X200 should be used together with \u003cstrong\u003eSentinel X100 Inhibitor\u003c\/strong\u003e (or Sentinel X500 Inhibited Antifreeze) to protect against corrosion and scale while the noise issue resolves.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eNon-Acid Formula\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eA \u003cstrong\u003enon-acid, non-corrosive treatment\u003c\/strong\u003e that avoids the risks associated with traditional acid-based descalers, making it safe to leave permanently in the system.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eTargets the Root Cause\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eWorks directly against the \u003cstrong\u003ethin layer of limescale deposit on the heat exchanger\u003c\/strong\u003e that is the most common cause of boiler kettling noise.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eRestores Boiler Efficiency\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eAs well as reducing noise, treating the underlying limescale deposit helps \u003cstrong\u003erestore boiler efficiency\u003c\/strong\u003e and reduce associated fuel wastage.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eLeave-In, Long-Lasting Treatment\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eDesigned as a \u003cstrong\u003eleave-in treatment\u003c\/strong\u003e for long-lasting prevention of boiler noise recurrence, rather than a one-off flush.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eSuitable for All System Metals\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eSuitable for use with \u003cstrong\u003eall commonly encountered metals and alloys, including aluminium\u003c\/strong\u003e, so it can be safely used across mixed-metal heating systems.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eSimple Dosing\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eCan be dosed via an \u003cstrong\u003eF\u0026amp;E cistern, by-pass feeder, or Sentinel Dosing Vessel\u003c\/strong\u003e on open systems, or added directly before filling on sealed systems.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n        \n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eProduct Identity\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel (Sentinel Performance Solutions)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eProduct Name\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel X200 Boiler Silencer (Noise Reducer)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMPN\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eX200\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eDosage\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eDose Rate\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1% of system volume\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eStandard Treatment\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 litre per typical domestic system of up to 10 radiators\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eLarger Systems\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eDose with twice the standard amount\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eFormulation\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eChemistry\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNon-acid limescale\/kettling treatment\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eCorrosivity\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNon-corrosive\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eTreatment Type\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eLeave-in system treatment\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eApplication \u0026amp; Compatibility\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSystem Types\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAll types of indirect central heating system, including aluminium\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eRecommended Pairing\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eUse with Sentinel X100 Inhibitor or Sentinel X500 Inhibited Antifreeze\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eQuality System\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eManufactured under a quality system conforming to ISO 9001\u003c\/td\u003e\n          \u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cdiv style=\"margin:24px 0;\"\u003e\n        \n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat causes the kettling noise X200 is designed to fix?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eBoiler kettling is most often caused by a \u003cstrong\u003ethin layer of limescale deposit on the heat exchanger surface\u003c\/strong\u003e. X200 is formulated specifically to treat this.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow much X200 do I need?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003e\n\u003cstrong\u003e1 litre treats a typical domestic system of up to 10 radiators.\u003c\/strong\u003e Larger systems should be dosed with twice this amount.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow long does it take to stop the noise?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eThis depends on the \u003cstrong\u003ehardness and quantity of limescale present\u003c\/strong\u003e. In severe cases, a further dose may be necessary.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eShould X200 be used on its own?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eNo. It should be used \u003cstrong\u003etogether with Sentinel X100 Inhibitor or Sentinel X500 Inhibited Antifreeze\u003c\/strong\u003e to also protect against corrosion and scale.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat if the noise is caused by sludge rather than limescale?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIf noise is due to \u003cstrong\u003eiron oxide corrosion debris (sludge)\u003c\/strong\u003e rather than limescale, the system should instead be cleaned with a suitable Sentinel cleaning product before treatment.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eIs X200 safe to leave permanently in the system?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes, it is a \u003cstrong\u003enon-acid, leave-in treatment\u003c\/strong\u003e designed for long-lasting prevention rather than a temporary flush.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sentinel","offers":[{"title":"Default Title","offer_id":65282940764509,"sku":"X200","price":14.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SentinelX200BoilerSilencer1Litre-Non-AcidKettlingNoiseTreatment.jpg?v=1784303447"},{"product_id":"sentinel-x300-universal-cleaner-1-litre-new-system-flux-debris-removal","title":"Sentinel X300 Universal Cleaner 1 Litre - New System Flux \u0026 Debris Removal","description":"\u003cdiv style=\"font-size:16px; max-width:900px; line-height:1.6; color:#1a1a1a;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSentinel X300 Universal Cleaner\u003c\/strong\u003e (MPN \u003cstrong\u003eX300\u003c\/strong\u003e) is a powerful, heavy-duty cleaner specifically designed for \u003cstrong\u003enew central heating systems up to six months old\u003c\/strong\u003e, where installation debris such as flux residue, swarf, and manufacturing grease can hinder even heat distribution. Circulated at first fill, X300 \u003cstrong\u003epassivates metal surfaces and prevents harmful copper deposition\u003c\/strong\u003e, preparing the system properly for long-term protection with Sentinel X100 Inhibitor.\u003c\/p\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1 Litre\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003ePack Size\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1 Hour\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eMin Circulation Time\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eUp to 10 Radiators\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCoverage\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e~6.7\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eConcentrate pH\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e-14°C\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eFreezing Point\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eBS 7593\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCompliance\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #c0392b; background-color:#fdecea; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#c0392b;\"\u003eNew Systems Only\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eSentinel X300 is \u003cstrong\u003eonly suitable for heating systems up to 6 months old\u003c\/strong\u003e. Older or existing systems should instead be cleaned with \u003cstrong\u003eSentinel X400 or Sentinel X800\u003c\/strong\u003e, which are formulated for established sludge and debris rather than fresh installation contamination.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eBS 7593 Compliance\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eBest practice, reflected in guidance such as the \u003cstrong\u003eUK Building Regulations Part L Domestic Heating Compliance Guide\u003c\/strong\u003e, is that a new central heating system should be thoroughly cleaned and flushed before commissioning. Systems should be \u003cstrong\u003ecleaned in accordance with BS 7593\u003c\/strong\u003e.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #b8860b; background-color:#fdf6e3; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#b8860b;\"\u003eCirculation Window\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eCirculate for a \u003cstrong\u003eminimum of 1 hour, up to a maximum of 24 hours\u003c\/strong\u003e, at normal operating temperature with all valves open. The system should be \u003cstrong\u003eflushed with clean water immediately after use\u003c\/strong\u003e, and not left circulating indefinitely.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eRemoves Installation Debris\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eFlushes out \u003cstrong\u003eswarf, flux residue, grit, sand and manufacturing grease\u003c\/strong\u003e commonly introduced during the installation of a new central heating system.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003ePrevents Copper Deposition\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eHelps \u003cstrong\u003eprevent harmful copper deposits\u003c\/strong\u003e being left in the system, a frequent cause of severe pin-hole corrosion in radiators further down the line.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eEliminates Corrosive Flux Residue\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eRemoves \u003cstrong\u003ecorrosive flux residues\u003c\/strong\u003e from soldered joints that could otherwise give rise to rapid pin-holing corrosion if left in circulation.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003ePassivates Metal Surfaces\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eAs it cleans, X300 \u003cstrong\u003epassivates the metal surfaces\u003c\/strong\u003e of the system, helping protect components as the system is prepared for inhibitor treatment.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003ePrepares System for X100\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eDesigned as the \u003cstrong\u003eideal preparation step before Sentinel X100 Inhibitor\u003c\/strong\u003e, ensuring the inhibitor is protecting genuinely clean surfaces rather than sealing in installation debris.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eSuitable for Aluminium Systems\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eA \u003cstrong\u003eneutral formulation\u003c\/strong\u003e safe for use in all types of indirect heating system, including those with aluminium components.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n        \n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eProduct Identity\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel (Sentinel Performance Solutions)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eProduct Name\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel X300 Universal Cleaner (New System Cleaner)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMPN\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eX300\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eTechnical Data\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMinimum Circulation Period\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 hour\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMaximum Circulation Period\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e24 hours (do not exceed)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003epH (Concentrate)\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eApprox. 6.7\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eFreezing Point\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e-14°C\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eVolume\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 L\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eDosage \u0026amp; Application\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eStandard Treatment\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 litre per typical domestic system of up to 10 radiators\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSuitable Systems\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNew systems, or those up to 6 months old\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eCirculation Conditions\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNormal operating temperature, all valves open\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003ePost-Use\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eFlush system with clean water immediately after use\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eCompliance \u0026amp; Compatibility\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eStandard Referenced\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eBS 7593\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSystem Types\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAll types of indirect heating system, including aluminium\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eNext Step\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003ePrepare system for Sentinel X100 Inhibitor\u003c\/td\u003e\n          \u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cdiv style=\"margin:24px 0;\"\u003e\n        \n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eCan I use X300 on an older, existing system?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eNo. Sentinel X300 is \u003cstrong\u003eonly suitable for systems up to 6 months old\u003c\/strong\u003e. Existing systems should be cleaned with \u003cstrong\u003eSentinel X400 or Sentinel X800\u003c\/strong\u003e instead.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow long should I circulate X300 for?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eCirculate for a \u003cstrong\u003eminimum of 1 hour\u003c\/strong\u003e at normal operating temperature with all valves open, up to a \u003cstrong\u003emaximum of 24 hours\u003c\/strong\u003e. Flush the system with clean water immediately afterwards.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat does X300 actually remove?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIt removes \u003cstrong\u003einstallation debris including flux residue, swarf, grit, sand and manufacturing grease\u003c\/strong\u003e left over from the installation process.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eDo I need anything after using X300?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes. After flushing, the system should be treated with \u003cstrong\u003eSentinel X100 Inhibitor\u003c\/strong\u003e to provide ongoing corrosion and scale protection.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow much X300 do I need?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003e\n\u003cstrong\u003e1 litre treats a typical domestic system of up to 10 radiators\u003c\/strong\u003e. Larger systems require proportionally more product.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eIs X300 compliant with UK best practice guidance?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes, it is designed to support \u003cstrong\u003ecleaning in accordance with BS 7593\u003c\/strong\u003e and the UK Building Regulations Part L Domestic Heating Compliance Guide.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sentinel","offers":[{"title":"Default Title","offer_id":65282973958493,"sku":"X300","price":17.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SentinelX300UniversalCleaner1Litre-NewSystemFlux_DebrisRemoval.jpg?v=1784303959"},{"product_id":"sentinel-x400-sludge-remover-1-litre-high-performance-cleaner-for-older-systems","title":"Sentinel X400 Sludge Remover 1 Litre - High Performance Cleaner for Older Systems","description":"\u003c!-- SEO Product Name: Sentinel X400 Sludge Remover 1 Litre - High Performance Cleaner for Older Systems - X400 --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; line-height:1.6; color:#1a1a1a;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSentinel X400 Sludge Remover\u003c\/strong\u003e (MPN \u003cstrong\u003eX400\u003c\/strong\u003e) is a high-performance, non-acid cleaner specifically designed for \u003cstrong\u003ecleaning older central heating systems\u003c\/strong\u003e. It restores circulation to radiators and pipework by lifting and dispersing built-up magnetite sludge, eliminating cold spots and restoring proper heat distribution. X400 is ideal where a \u003cstrong\u003enew boiler or pump is being fitted to an existing system\u003c\/strong\u003e, or where radiators have cold areas caused by sludge build-up.\u003c\/p\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1 Litre\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003ePack Size\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1% of System Volume\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eDose Rate\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eUp to 10 Radiators\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCoverage\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e2 Hours\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eMin Circulation\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eUp to 3 Weeks\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eSuspension Time\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eNon-Acid\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eFormulation\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eDosage\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003e\n\u003cstrong\u003e1 litre of Sentinel X400 treats a typical domestic system of 8 to 10 radiator panels.\u003c\/strong\u003e Larger systems should be dosed with 2 litres, at a rate of 1% of system volume.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #b8860b; background-color:#fdf6e3; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#b8860b;\"\u003eCirculation Requirements\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eTo clean an existing system in accordance with \u003cstrong\u003eBS 7593\u003c\/strong\u003e, X400 should be circulated at normal operating temperature, with all valves open and the pump on maximum flow, for a \u003cstrong\u003eminimum of 2 hours\u003c\/strong\u003e or until satisfactory performance is restored. Where systems are \u003cstrong\u003ebadly fouled, a longer circulation period of approximately 3-4 weeks\u003c\/strong\u003e is recommended, and this product will not clear a completely blocked pipe.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003ePowerflushing Compatible\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eFor faster, more effective cleaning, X400 can be used \u003cstrong\u003ein conjunction with a powerflushing device\u003c\/strong\u003e. The product is not aggressive and can be safely left circulating in the system for extended periods where needed.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eRemoves Built-Up Magnetite Sludge\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eFormulated with a \u003cstrong\u003eruthlessly efficient formula\u003c\/strong\u003e that shifts built-up magnetite sludge from radiators and pipework, addressing the leading cause of cold spots in older systems.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eRestores Even Heat Distribution\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eBy clearing sludge from circulation, X400 helps \u003cstrong\u003erestore a more even heat distribution\u003c\/strong\u003e throughout the property, improving comfort and reducing energy waste.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eNon-Acid, Non-Aggressive Formula\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eUnlike acid-based treatments, X400 has a \u003cstrong\u003enon-acid formulation which does not cause pin-holing or leaks\u003c\/strong\u003e, making it safe for extended circulation periods.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eHolds Sludge in Suspension\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eOnce mobilised, the product \u003cstrong\u003eholds sludge in suspension for up to 3 weeks\u003c\/strong\u003e, which is particularly useful for pre-dosing before a scheduled flush or powerflush visit.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003ePrepares System for New Components\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eIdeal preparation before \u003cstrong\u003efitting a new boiler or pump to an existing system\u003c\/strong\u003e, helping to prolong the effective life of the new component by removing damaging debris first.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eSuitable for Aluminium Systems\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eA \u003cstrong\u003enon-acid formulation suitable for use in all types of indirect heating systems\u003c\/strong\u003e, including those containing aluminium components.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n        \n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eProduct Identity\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel (Sentinel Performance Solutions)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eProduct Name\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel X400 Sludge Remover (High Performance Cleaner)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMPN\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eX400\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eDosage\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eDose Rate\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1% of system volume\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eStandard Treatment\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 litre per 8-10 radiator domestic system\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eLarger Systems\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e2 litres\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eCirculation \u0026amp; Application\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMinimum Circulation Time\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e2 hours at normal operating temperature, maximum flow\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eHeavily Fouled Systems\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eExtended circulation up to 3-4 weeks\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSludge Suspension Time\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eUp to 3 weeks\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003ePowerflush Compatible\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eYes\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eCompatibility \u0026amp; Compliance\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSystem Types\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAll types of indirect heating system, including aluminium\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eStandard Referenced\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eBS 7593\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eNext Step\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eDrain, flush, then treat with Sentinel X100 Inhibitor or Sentinel X500 Inhibited Antifreeze\u003c\/td\u003e\n          \u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cdiv style=\"margin:24px 0;\"\u003e\n        \n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat is X400 designed to remove?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIt is designed to remove \u003cstrong\u003ebuilt-up magnetite sludge\u003c\/strong\u003e from older central heating systems, restoring circulation to radiators and pipework and eliminating cold spots.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow long should I circulate X400?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eFor a minimum of \u003cstrong\u003e2 hours\u003c\/strong\u003e at normal operating temperature with all valves open and the pump at maximum flow, or until satisfactory performance is restored.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat if my system is very badly fouled?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eFor heavily fouled systems, a \u003cstrong\u003elonger circulation period of approximately 3-4 weeks\u003c\/strong\u003e is recommended, and using a powerflushing device will speed up the process.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow much X400 do I need?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003e\n\u003cstrong\u003e1 litre treats a typical domestic system of 8 to 10 radiators.\u003c\/strong\u003e Larger systems should be dosed with 2 litres.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWill X400 clear a completely blocked pipe?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eNo. This product \u003cstrong\u003ewill not clear a completely blocked pipe\u003c\/strong\u003e - it is intended for circulating sludge and debris, not resolving total blockages.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat should I do after using X400?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eDrain and thoroughly flush the system, then refill and treat with \u003cstrong\u003eSentinel X100 Inhibitor\u003c\/strong\u003e or Sentinel X500 Inhibited Antifreeze.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sentinel","offers":[{"title":"Default Title","offer_id":65282996437341,"sku":"X400","price":16.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SentinelX400SludgeRemover1Litre.jpg?v=1784304372"},{"product_id":"sentinel-x700-biocide-1-litre-underfloor-heating-bacteria-fungi-protection","title":"Sentinel X700 Biocide 1 Litre - Underfloor Heating Bacteria \u0026 Fungi Protection","description":"\u003c!-- SEO Product Name: Sentinel X700 Biocide 1 Litre - Underfloor Heating Bacteria \u0026 Fungi Protection - X700 --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; line-height:1.6; color:#1a1a1a;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSentinel X700 Biocide\u003c\/strong\u003e (MPN \u003cstrong\u003eX700\u003c\/strong\u003e) is a specialist treatment formulated to \u003cstrong\u003eprotect underfloor heating systems from biological contamination\u003c\/strong\u003e caused by bacteria and fungi. Due to their lower operating temperatures and slower flow rates compared to traditional radiator systems, underfloor circuits are more susceptible to microbial growth if left untreated - which can lead to \u003cstrong\u003eblocked pipework, restricted manifold ports, unpleasant odours, and internal corrosion\u003c\/strong\u003e. X700 is dosed alongside Sentinel X100 Inhibitor to keep pipework clear and heat distribution reliable across every zone.\u003c\/p\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1 Litre\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003ePack Size\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eUnderfloor Heating\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eSystem Type\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1L per 300L System\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eDose Rate\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e30 Minutes\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCirculation Time\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003ePrimary Circuit Only\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eUse Location\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eX100 Inhibitor\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003ePairs With\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #c0392b; background-color:#fdecea; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#c0392b;\"\u003eCorrosive Product - Handle With Care\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eSentinel X700 is classified as \u003cstrong\u003ecorrosive to metals and to skin, and causes serious eye damage\u003c\/strong\u003e, and is hazardous to the aquatic environment. Suitable \u003cstrong\u003eprotective clothing, gloves and eye protection must be worn\u003c\/strong\u003e when handling, and the product must not enter drains or watercourses. Always read the safety data sheet before use.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #b8860b; background-color:#fdf6e3; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#b8860b;\"\u003ePrimary Circuit Use Only\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eThis product is \u003cstrong\u003eonly for use in the primary circuit of underfloor heating systems\u003c\/strong\u003e and should \u003cstrong\u003enot be mixed with other cleaning products\u003c\/strong\u003e other than those specifically approved by Sentinel.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eDosing Instructions\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eIn new systems, add \u003cstrong\u003e1 litre of X700 during the final fill\u003c\/strong\u003e. In larger systems, dose at \u003cstrong\u003e1 litre per 300 litres of system volume\u003c\/strong\u003e, and circulate for \u003cstrong\u003e30 minutes\u003c\/strong\u003e to ensure complete distribution.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003ePurpose-Built for Underfloor Systems\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eSpecifically formulated to address the \u003cstrong\u003elower operating temperatures and slower flow rates\u003c\/strong\u003e of underfloor heating circuits, which make them more vulnerable to microbial growth than standard radiator systems.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003ePrevents Blockages and Odours\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eControls the bacterial and fungal contamination responsible for \u003cstrong\u003eblocked pipework, restricted manifold ports, and unpleasant odours\u003c\/strong\u003e in affected systems.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eProtects Against Internal Corrosion\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eHelps prevent the \u003cstrong\u003einternal corrosion\u003c\/strong\u003e that biological contamination can cause within underfloor heating pipework over time.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eCompatible with X100 Inhibitor\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eDesigned to be used \u003cstrong\u003ealongside Sentinel X100 Inhibitor\u003c\/strong\u003e at first fill or following a full system clean, for combined biological and corrosion\/scale protection.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eLong-Lasting Protection\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eProvides \u003cstrong\u003elong-lasting protection\u003c\/strong\u003e against bacteria and fungi once correctly dosed and circulated through the system.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eQuick to Dose\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eA straightforward dosing process that is \u003cstrong\u003eeasy and quick to apply\u003c\/strong\u003e either at first fill or as part of scheduled system maintenance.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n        \n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eProduct Identity\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel (Sentinel Performance Solutions)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eProduct Name\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel X700 Biocide\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMPN\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eX700\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eApplication\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eIntended Use\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eUnderfloor heating primary circuits\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eRecommended Pairing\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel X100 Inhibitor\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eNot Suitable For\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eMixing with other cleaning products not specified by Sentinel\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eDosage\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eNew Systems\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 litre during final fill\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eLarger Systems\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 litre per 300 litres system volume\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eCirculation Time\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e30 minutes minimum for full distribution\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eSafety Classification (per SDS)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eCorrosive to Metals\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eCategory 1\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSkin Corrosion\/Irritation\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eCategory 2\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSerious Eye Damage\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eCategory 1\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eAquatic Hazard\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAcute Category 1 \/ Chronic Category 3\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003ePPE Required\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eProtective clothing, gloves, eye protection\u003c\/td\u003e\n          \u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cdiv style=\"margin:24px 0;\"\u003e\n        \n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhy do underfloor heating systems need a biocide?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eUnderfloor circuits run at \u003cstrong\u003elower temperatures and slower flow rates\u003c\/strong\u003e than radiator systems, which makes them more susceptible to bacterial and fungal contamination if left untreated.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow much X700 do I need?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIn new systems, add \u003cstrong\u003e1 litre during the final fill\u003c\/strong\u003e. For larger systems, dose at \u003cstrong\u003e1 litre per 300 litres of system volume\u003c\/strong\u003e.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow long should I circulate it for?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eCirculate the system for \u003cstrong\u003eat least 30 minutes\u003c\/strong\u003e after dosing to ensure complete distribution throughout the whole system.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eCan X700 be used with other cleaning chemicals?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eNo. This product \u003cstrong\u003eshould not be mixed with other types of cleaning product\u003c\/strong\u003e other than those specifically approved by Sentinel.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eIs X700 safe to handle?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIt is classified as \u003cstrong\u003ecorrosive to metals and to skin, and can cause serious eye damage\u003c\/strong\u003e. Always wear suitable protective clothing, gloves and eye protection, and read the safety data sheet before use.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eShould X700 be used alone or with an inhibitor?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eFor efficient long-term operation, underfloor systems should be treated with \u003cstrong\u003eboth Sentinel X700 Biocide and Sentinel X100 Inhibitor\u003c\/strong\u003e at first fill or following a clean.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sentinel","offers":[{"title":"Default Title","offer_id":65283125117277,"sku":"X700","price":27.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SentinelX700Biocide1Litre-UnderfloorHeatingBacteria_FungiProtection.jpg?v=1784306314"},{"product_id":"sentinel-x100-instadose-pre-measured-inhibitor-pouch-with-adaptor","title":"Sentinel X100 InstaDose - Pre-Measured Inhibitor Pouch with Adaptor","description":"\u003c!-- SEO Product Name: Sentinel X100 InstaDose - Pre-Measured 250ml Inhibitor Pouch with Adaptor - X100ID-12X250ML-EXP --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; line-height:1.6; color:#1a1a1a;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSentinel X100 InstaDose\u003c\/strong\u003e (MPN \u003cstrong\u003eX100ID-12X250ML-EXP\u003c\/strong\u003e) is Sentinel's \u003cstrong\u003epre-measured, ready-to-use dosing solution\u003c\/strong\u003e for delivering X100 Inhibitor protection quickly and cleanly on site. This \u003cstrong\u003e250ml pouch comes complete with its own dosing adaptor\u003c\/strong\u003e, so every dose is measured precisely with \u003cstrong\u003ezero waste and zero mess\u003c\/strong\u003e - no decanting from a bottle, no guesswork on quantity. InstaDose delivers the same \u003cstrong\u003eTripleTech™ Anti-Corrosion Technology\u003c\/strong\u003e found in standard Sentinel X100 Inhibitor, protecting central heating systems against limescale and corrosion.\u003c\/p\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e250 ml\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003ePouch Size\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e0.25%\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eDose Rate\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e100 L System Water\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCoverage\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eReady-to-Use Pouch + Adaptor\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eFormat\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eTripleTech™\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eTechnology\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eHard \u0026amp; Soft\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eWater Suitability\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eDosage\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003e\n\u003cstrong\u003e250ml of Sentinel X100 InstaDose treats and tops up a typical domestic system of 8 to 10 radiator panels\u003c\/strong\u003e - i.e. 250ml treats 100 litres of system water, a 0.25% dose rate. Larger systems should be dosed with 500ml (a second pouch).\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #c0392b; background-color:#fdecea; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#c0392b;\"\u003ePre-Treatment Cleaning Required\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eFor best results, systems should be \u003cstrong\u003ecleaned and flushed in accordance with BS7593\u003c\/strong\u003e before dosing: use \u003cstrong\u003eSentinel X300\u003c\/strong\u003e for new systems and those up to 6 months old, or \u003cstrong\u003eSentinel X400 \/ Sentinel X800\u003c\/strong\u003e for existing systems.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #b8860b; background-color:#fdf6e3; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#b8860b;\"\u003eNoisy Boiler Note\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eIf the system is \u003cstrong\u003ealready noisy due to limescale deposits\u003c\/strong\u003e in the heat exchanger, \u003cstrong\u003eSentinel X200\u003c\/strong\u003e should be added together with X100 InstaDose rather than X100 InstaDose alone.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eZero Waste, Zero Mess Dosing\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eThis dose is \u003cstrong\u003epre-measured in a 250ml pouch\u003c\/strong\u003e with its own adaptor, removing the need to measure out inhibitor from a bulk bottle and eliminating spillage on site.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eSame TripleTech™ Protection as X100\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eDelivers the same \u003cstrong\u003eTripleTech™ Anti-Corrosion Technology\u003c\/strong\u003e as standard Sentinel X100 Inhibitor - a blend of three heavy-duty specialist corrosion inhibitors targeting different metal types in a multi-metal system.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eReady-to-Use Adaptor Included\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eSupplied with a \u003cstrong\u003eready-to-use pouch and adaptor\u003c\/strong\u003e for quick, direct dosing into the system without additional equipment.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003epH-Neutral, Multi-Metal Formula\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eA \u003cstrong\u003epH neutral formulation\u003c\/strong\u003e suitable for all system metals, helping prevent the formation of hydrogen gas and protecting against both corrosion and limescale.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eHard and Soft Water Suitable\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eEffective in \u003cstrong\u003ehard, soft and artificially softened water\u003c\/strong\u003e areas, giving consistent protection regardless of local water conditions.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eEnergy Saving Trust Recommended\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eLike standard Sentinel X100, InstaDose is an \u003cstrong\u003eEnergy Saving Trust Recommended\u003c\/strong\u003e product, reflecting its role in maintaining boiler efficiency and reducing wasted energy.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n        \n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eProduct Identity\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel (Sentinel Performance Solutions)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eProduct Name\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel X100 InstaDose\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMPN\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eX100ID-12X250ML-EXP\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eRange\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel Inhibitor - X100 InstaDose\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003ePack \u0026amp; Dosage\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eContent\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e0.25 L (250 ml) liquid pouch\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eDosage Rate\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e0.25% of system volume\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSystem Water Treated\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e100 litres per pouch\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eLarger Systems\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e500ml (a second pouch)\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eFormulation\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eChemistry\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAqueous solution of inorganic and organic corrosion and scale inhibitors\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003epH\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNeutral formulation\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eWater Suitability\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eHard, soft and artificially softened water\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eTechnology\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eTripleTech™ Anti-Corrosion Technology\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eApplication \u0026amp; Compatibility\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSystem Types\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAll types of indirect central heating system, including aluminium\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eDosing Method\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eReady-to-use pouch with integrated adaptor\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003ePre-Treatment\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNew\/young systems: Sentinel X300; existing systems: Sentinel X400 or X800\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eNoise Complement\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAdd with Sentinel X200 if boiler noise present\u003c\/td\u003e\n          \u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cdiv style=\"margin:24px 0;\"\u003e\n        \n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow is X100 InstaDose different from standard Sentinel X100 Inhibitor?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eInstaDose is the \u003cstrong\u003esame TripleTech™ formulation\u003c\/strong\u003e as standard X100, but supplied in a \u003cstrong\u003epre-measured 250ml pouch with an integrated adaptor\u003c\/strong\u003e for faster, cleaner dosing rather than a bulk bottle.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow much system water does this pouch treat?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eThis \u003cstrong\u003e250ml pouch treats 100 litres of system water\u003c\/strong\u003e - enough for a typical domestic system of 8 to 10 radiator panels. Larger systems should be dosed with 500ml (a second pouch).\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eDo I need to clean the system before dosing with InstaDose?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes, for best results. Use \u003cstrong\u003eSentinel X300 on new systems or those up to 6 months old\u003c\/strong\u003e, or \u003cstrong\u003eSentinel X400 \/ X800 on existing systems\u003c\/strong\u003e, before dosing.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eIs InstaDose suitable for systems with aluminium components?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes, it is \u003cstrong\u003esuitable for use with all commonly encountered metals and alloys, including aluminium\u003c\/strong\u003e, the same as standard Sentinel X100.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat should I do if my boiler is noisy?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIf noise is caused by \u003cstrong\u003elimescale deposits in the heat exchanger\u003c\/strong\u003e, add \u003cstrong\u003eSentinel X200\u003c\/strong\u003e together with X100 InstaDose.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eDoes the pouch come with a dosing adaptor?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes, each pouch is \u003cstrong\u003esupplied ready-to-use with its own integrated adaptor\u003c\/strong\u003e, so no separate dosing equipment is needed.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sentinel","offers":[{"title":"Default Title","offer_id":65283162669405,"sku":"X100ID-12X250","price":19.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SentinelInstaDoseX100ID-12X250ML-EXP.jpg?v=1784307095"},{"product_id":"sentinel-x800-jetflo-powerflush-1-litre-tripletech-fast-acting-system-cleaner","title":"Sentinel X800 Jetflo Powerflush 1 Litre - TripleTech Fast-Acting System Cleaner","description":"\u003c!-- SEO Product Name: Sentinel X800 Jetflo Powerflush 1 Litre - TripleTech Fast-Acting System Cleaner - X800 --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; line-height:1.6; color:#1a1a1a;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSentinel X800 Jetflo Powerflush\u003c\/strong\u003e (MPN \u003cstrong\u003eX800\u003c\/strong\u003e) is a rapid-acting cleaner formulated for use with \u003cstrong\u003epower flushing equipment\u003c\/strong\u003e, designed to remove corrosion deposits, magnetite sludge and limescale from boiler heat exchangers, radiators, underfloor heating and pipework in \u003cstrong\u003eas little as one hour\u003c\/strong\u003e. Its \u003cstrong\u003eTripleTech™ Power Clean Technology\u003c\/strong\u003e combines three chemical technologies to penetrate and attack debris, dissolve it into a ready-to-flush solution, and leave a long-lasting anti-corrosion surface behind.\u003c\/p\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1 Litre\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003ePack Size\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1 Hour Minimum\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCirculation Time\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eUp to 10 Radiators\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCoverage\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eNeutral pH\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eFormulation\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e100%\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eBiodegradability\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003ePowerflush Machine\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eBest Used With\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eBest Results with Powerflushing Equipment\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eTo clean a system in accordance with \u003cstrong\u003eBS 7593\u003c\/strong\u003e, it is \u003cstrong\u003estrongly recommended that Sentinel X800 is used with power flushing equipment\u003c\/strong\u003e, following the equipment manufacturer's instructions, for the most rapid and effective clean.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #b8860b; background-color:#fdf6e3; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#b8860b;\"\u003eManual Circulation Alternative\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eWhere a power flushing machine is not used, X800 can instead be \u003cstrong\u003ecirculated at normal operating temperature with all valves open and the pump on maximum flow for a minimum of 1 hour\u003c\/strong\u003e, or until satisfactory performance is restored. This product \u003cstrong\u003ewill not clear a completely blocked pipe\u003c\/strong\u003e.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003ePost-Clean Protection\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eAfter cleaning, the system should be \u003cstrong\u003edrained and flushed until the water runs clear\u003c\/strong\u003e, then refilled and treated with \u003cstrong\u003eSentinel X100 Inhibitor\u003c\/strong\u003e (or Sentinel X500 Inhibited Antifreeze).\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eTripleTech™ Power Clean Technology\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eA \u003cstrong\u003eunique formula combining three different chemical technologies\u003c\/strong\u003e that penetrate and attack scale and corrosion debris, dissolving it into a ready-to-flush solution.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eFastest-Acting Sentinel Cleaner\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eReduces typical circulation time to just \u003cstrong\u003eone hour\u003c\/strong\u003e, making it the quickest option in the Sentinel cleaner range for restoring system efficiency.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eNeutral pH, Non-Acidic\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eActs as a dispersing agent \u003cstrong\u003eunder neutral pH conditions\u003c\/strong\u003e, avoiding the risks associated with traditional acid-based cleaners while still delivering rapid results.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eLeaves Anti-Corrosion Protection\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eAs it cleans, X800 leaves behind a \u003cstrong\u003elong-lasting anti-corrosion surface protection\u003c\/strong\u003e, helping guard system metals during and immediately after the flush.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eNon-Toxic and Biodegradable\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eFormulated to be \u003cstrong\u003enon-toxic and 100% biodegradable\u003c\/strong\u003e, making it a safer environmental choice than traditional acidic descaling products.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eIdeal for Powerflushing Machines\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eDelivers its full performance potential when used with a \u003cstrong\u003epowerflushing machine such as the Sentinel JetFlush Rapid\u003c\/strong\u003e, though it remains effective in manual circulation cleaning.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n        \n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eProduct Identity\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel (Sentinel Performance Solutions)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eProduct Name\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel X800 Jetflo (Fast Acting Cleaner)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMPN\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eX800\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eTechnical Data\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eAppearance\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eClear, yellow or amber solution\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eOdour\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eMild\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eFormulation pH\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eNeutral\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eBiodegradability\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e100% biodegradable\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eDosage \u0026amp; Circulation\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eStandard Treatment\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 litre per typical system of up to 10 radiators\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eLarger \/ Badly Fouled Systems\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e2 litres\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMinimum Circulation Time\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 hour at normal operating temperature, maximum flow\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eRecommended Method\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003ePowerflushing equipment for fastest, most effective clean\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eCompatibility \u0026amp; Compliance\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSystem Types\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAll commonly encountered metals and alloys, including aluminium\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eStandard Referenced\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eBS 7593:2006\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eNext Step\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eRefill and treat with Sentinel X100 Inhibitor or Sentinel X500 Inhibited Antifreeze\u003c\/td\u003e\n          \u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cdiv style=\"margin:24px 0;\"\u003e\n        \n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eDo I need a powerflushing machine to use X800?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eIt is \u003cstrong\u003estrongly recommended for the fastest, most effective clean\u003c\/strong\u003e, but X800 can also be circulated manually at normal operating temperature with all valves open for a minimum of 1 hour.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow long does X800 take to clean a system?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eCirculation time is reduced to just \u003cstrong\u003e1 hour\u003c\/strong\u003e under normal conditions - the fastest-acting cleaner in the Sentinel range.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWill X800 clear a completely blocked pipe?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eNo. This product \u003cstrong\u003ewill not clear a completely blocked pipe\u003c\/strong\u003e - it is designed to remove circulating scale and corrosion debris, not resolve total blockages.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow much X800 do I need?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003e\n\u003cstrong\u003e1 litre treats a typical system of up to 10 radiators.\u003c\/strong\u003e For larger or badly fouled systems, use 2 litres.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat should I do after using X800?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003e\n\u003cstrong\u003eDrain and flush the system until the water runs clear\u003c\/strong\u003e, then refill and treat with \u003cstrong\u003eSentinel X100 Inhibitor\u003c\/strong\u003e or Sentinel X500 Inhibited Antifreeze.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eIs X800 safe for the environment?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes, it is formulated to be \u003cstrong\u003enon-toxic and 100% biodegradable\u003c\/strong\u003e, and operates under neutral pH conditions rather than using acidic chemistry.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sentinel","offers":[{"title":"Default Title","offer_id":65283199009117,"sku":"X800","price":15.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SentinelX800JetfloPowerflush1Litre.jpg?v=1784307768"},{"product_id":"sentinel-leak-sealer-1-litre-internal-weeping-joint-pinhole-leak-treatment","title":"Sentinel Leak Sealer 1 Litre - Internal Weeping Joint \u0026 Pinhole Leak Treatment","description":"\u003c!-- SEO Product Name: Sentinel Leak Sealer 1 Litre - Internal Weeping Joint \u0026 Pinhole Leak Treatment - ILS --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; line-height:1.6; color:#1a1a1a;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSentinel Leak Sealer\u003c\/strong\u003e (MPN \u003cstrong\u003eILS\u003c\/strong\u003e) is a leave-in additive for \u003cstrong\u003esealing minor leaks and weeping joints\u003c\/strong\u003e in all types of indirect central heating systems, including those containing aluminium components. Once added, it forms a \u003cstrong\u003esoft seal over the leaking area\u003c\/strong\u003e, normally within 24 hours depending on leak rate and system temperature, without causing blockages elsewhere in the system.\u003c\/p\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e1 Litre\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003ePack Size\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e~24 Hours\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eTypical Seal Time\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eUp to 10 Radiators\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCoverage\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eElastomers\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCompatible With\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eNon-Toxic\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eFormulation\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 150px; background-color:#008377CF; color:#ffffff; padding:14px 10px; border-radius:6px; text-align:center; min-width:140px;\"\u003e\n          \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eISO 9001\u003c\/div\u003e\n          \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eQuality System\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003eCompatible With Existing Treatment\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eSentinel Leak Sealer is \u003cstrong\u003ecompatible with other Sentinel products\u003c\/strong\u003e that may already be present in the system, so it can generally be added without needing to drain and refill.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #b8860b; background-color:#fdf6e3; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#b8860b;\"\u003eDosage Depends on System Size\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003e1 litre treats a \u003cstrong\u003etypical domestic system of up to 10 radiators\u003c\/strong\u003e. Larger systems should be dosed with \u003cstrong\u003e2 litres\u003c\/strong\u003e. This product will not seal significant leaks or resolve mechanical failures - it is intended for minor weeping joints and pinhole leaks only.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"border-left:5px solid #008377CF; background-color:#e6f6f5; padding:12px 16px; border-radius:4px; margin:16px 0;\"\u003e\n        \u003cstrong style=\"color:#008377CF;\"\u003ePost-Dosing Operation\u003c\/strong\u003e\n        \u003cdiv style=\"margin-top:6px; font-size:15px; line-height:1.5;\"\u003eAfter dosing, the \u003cstrong\u003esystem should be operated normally for at least 15 minutes\u003c\/strong\u003e, as heat is beneficial to the sealing process.\u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:20px 0;\"\u003e\n        \n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eEffective on Minor Leaks\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eDesigned to \u003cstrong\u003eseal weeping joints and pinhole leaks\u003c\/strong\u003e that are too small to justify a full repair callout, extending the useful life of ageing joints and fittings.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eWon't Cause Blockages\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eFormulated to be \u003cstrong\u003ereadily dispersible\u003c\/strong\u003e, meaning it will not build up and block narrow pipework, radiator valves, or heat exchangers elsewhere in the system.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eBroad Metal Compatibility\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eSuitable for use in \u003cstrong\u003eall types of indirect central heating system\u003c\/strong\u003e, including those with aluminium components, and is \u003cstrong\u003ecompatible with elastomers\u003c\/strong\u003e such as seals and gaskets.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eCompatible with Other Treatments\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eCan be used alongside \u003cstrong\u003eexisting Sentinel inhibitor and cleaner products\u003c\/strong\u003e already circulating in the system, without needing to drain down first.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eNon-Toxic, Non-Irritant\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eFormulated to be \u003cstrong\u003enon-toxic and non-irritant\u003c\/strong\u003e, making it straightforward and low-risk to handle and dose on site.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; border:1px solid #e0e0e0; border-radius:6px; padding:14px 16px; min-width:240px;\"\u003e\n          \u003cdiv style=\"color:#008377CF; font-weight:700; font-size:15px; margin-bottom:6px;\"\u003eRapid-Dose Format Available\u003c\/div\u003e\n          \u003cdiv style=\"font-size:14px; line-height:1.5;\"\u003eWhere faster dosing is needed, Sentinel also offers this product in a \u003cstrong\u003eRapid-Dose format\u003c\/strong\u003e for quicker application directly into the system.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n        \n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eProduct Identity\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel (Sentinel Performance Solutions)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eProduct Name\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSentinel Leak Sealer\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMPN\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eILS\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eApplication\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eUse Case\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eSealing minor leaks and weeping joints\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eSystem Types\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAll types of indirect central heating system\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eTypical Sealing Time\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eApprox. 24 hours (leak-rate and temperature dependent)\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eDosage\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eStandard Dose\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e1 litre per typical domestic system (up to 10 radiators)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eLarger Systems\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003e2 litres\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003ePost-Dose Operation\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eRun system normally for minimum 15 minutes\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd colspan=\"2\" style=\"background-color:#008377CF; color:#ffffff; font-weight:700; padding:8px 12px; border:1px solid #008377CF;\"\u003eCompatibility\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eMetals\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eAll metals including aluminium\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eElastomers\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eCompatible with elastomers (seals, gaskets)\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#f7f7f7;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eOther Sentinel Products\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eCompatible with existing Sentinel inhibitors and cleaners\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr style=\"background-color:#ffffff;\"\u003e\n            \u003ctd style=\"padding:8px 12px; font-weight:600; border:1px solid #e5e5e5; width:40%;\"\u003eQuality System\u003c\/td\u003e\n            \u003ctd style=\"padding:8px 12px; border:1px solid #e5e5e5;\"\u003eManufactured under ISO 9001\u003c\/td\u003e\n          \u003c\/tr\u003e\n      \u003c\/table\u003e\n      \u003cdiv style=\"margin:24px 0;\"\u003e\n        \n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat size leaks will this product seal?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eSentinel Leak Sealer is designed for \u003cstrong\u003eminor leaks and weeping joints\u003c\/strong\u003e - not significant leaks, mechanical failures, or large pipe splits, which require a physical repair.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow long does it take to seal a leak?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eA soft seal typically forms \u003cstrong\u003ewithin 24 hours\u003c\/strong\u003e, though this depends on the rate of the leak and the system's operating temperature.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWill it block my radiators or pipework?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eNo. The formulation is \u003cstrong\u003ereadily dispersible\u003c\/strong\u003e and is specifically designed not to cause blockages elsewhere in the system.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eHow much do I need for my system?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003e\n\u003cstrong\u003e1 litre treats a typical domestic system of up to 10 radiators.\u003c\/strong\u003e Larger systems should be dosed with 2 litres.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eCan I use this alongside my existing inhibitor?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eYes, Sentinel Leak Sealer is \u003cstrong\u003ecompatible with other Sentinel products\u003c\/strong\u003e already circulating in the system.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003cdetails style=\"margin-bottom:8px; border:1px solid #e0e0e0; border-radius:6px; overflow:hidden;\"\u003e\n        \u003csummary style=\"background-color:#008377CF; color:#ffffff; padding:10px 14px; font-weight:600; cursor:pointer; list-style:none;\"\u003eWhat should I do after dosing?\u003c\/summary\u003e\n        \u003cdiv style=\"padding:12px 14px; font-size:14px; line-height:1.6;\"\u003eOperate the \u003cstrong\u003esystem normally for at least 15 minutes\u003c\/strong\u003e after dosing, since heat assists the sealing process.\u003c\/div\u003e\n      \u003c\/details\u003e\n      \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sentinel","offers":[{"title":"Default Title","offer_id":65283207299421,"sku":"ILS","price":13.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SentinelLeakSealer1Litre-InternalWeepingJoint_PinholeLeakTreatment-ILS.jpg?v=1784308008"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/collections\/Central_Heating_Chemicals.jpg?v=1784300042","url":"https:\/\/qualityheating.co.uk\/collections\/central-heating-chemicals.oembed","provider":"AIZO Quality Heating","version":"1.0","type":"link"}