SR1-03-05233
ElectroScale2
22mm Compression
WRAS Approved
Part L Compliant
10-Year Life
ADEY ElectroScale2 22mm Compression (SR1-03-05233) — Electrolytic scale reducer for hard water areas (>200ppm) | No power, no chemicals, no maintenance | Copper body with zinc anode | Fits horizontal & vertical pipework | WRAS approved | Part L Building Regulations compliant | 10-year design life
Whole-House Limescale Protection — Fit and Forget
The ADEY ElectroScale2 (SR1-03-05233) is a maintenance-free electrolytic water conditioner designed to protect boilers, hot water cylinders, pipes and appliances from damaging limescale build-up in areas where mains water hardness exceeds 200ppm. Unlike chemical dosing systems, ElectroScale2 requires no power supply, no cartridge replacements and no ongoing maintenance — install it once and leave it to work.
Inside the unit, a zinc anode interacts electrochemically with the passing water, subtly altering the crystal structure of calcium carbonate (limescale) minerals. This modification makes the crystals less adhesive, so rather than depositing as hard scale on boiler heat exchangers, pipe walls and appliance components, they remain in suspension and are flushed harmlessly away. The result is significantly reduced scale accumulation throughout the entire system — with no chemicals introduced to the water supply.
✅ WRAS Approved — safe for use on drinking water supplies
✅ Part L Building Regulations compliant — satisfies requirement for scale protection on combination boiler cold feed in hard water areas
✅ Designed and manufactured by ADEY — the UK's leading heating system protection specialist
Key Features
⚡ No Power Required
The electrolytic process is entirely passive — no mains connection, no batteries and no running costs whatsoever.
🔧 Fit and Forget
No cartridges, no chemicals and no servicing required. Designed to last 10 years in normal use without any maintenance intervention.
🌿 Non-Polluting
No chemicals are added to the water supply. Safe for drinking water pipework and WRAS approved for use on potable water systems.
🏗️ Easy Installation
22mm compression slip-socket ends with easy-grip spanner flats. Fits both horizontal and vertical pipework without special tools.
⚖️ Whole-House Protection
Install on the incoming cold water supply (after the meter and any primary filter) to protect the entire property — boiler, cylinders, taps and appliances alike.
📋 Part L Compliant
Meets Part L Building Regulation requirements for scale prevention on combination boiler cold feeds in hard water areas (above 200ppm).
How Electrolytic Scale Reduction Works
As water flows through the ElectroScale2, it passes over a zinc anode. The mild electrolytic action caused by the dissimilar metals (copper body and zinc anode) in contact with the water modifies the crystalline structure of calcium carbonate minerals. The conditioned crystals form a fine particulate suspension rather than the hard, adherent scale deposits that normally accumulate on heat exchanger surfaces and pipe walls. The particles pass harmlessly through the system and drain away. Unlike electronic water conditioners that rely on radio frequency fields, ElectroScale2 uses direct electrochemical action with no external energy input.
⚠️ Installation Notes
Install on the cold feed only — not suitable for installation on hot water pipework. Install after the water meter and any primary filter units, before the feed to the boiler or hot water cylinder. Maintain earth continuity where required by current wiring regulations. Only WRAS-approved jointing compounds should be used. Installation by a qualified heating engineer is recommended. Do not reuse old compression olives if replacing an existing fitting.
Technical Specifications
| Parameter |
Specification |
| Part Number |
SR1-03-05233 |
| Brand |
ADEY |
| Range |
ElectroScale2 |
| Connection Size |
22mm compression (to BS EN 1254-2) |
| Body Material |
Copper (external) |
| End Cap Material |
Low-lead brass |
| Anode Material |
Zinc (internal) |
| Length |
185mm |
| Diameter |
39mm |
| Weight |
664g |
| Maximum Working Pressure |
10 bar at 20°C |
| Maximum Working Temperature |
Cold feed only |
| Minimum Working Temperature |
3°C |
| Maximum Flow Rate |
36.0 L/min |
| Pressure Drop at Max Flow |
44 mbar at 36.0 L/min |
| Target Water Hardness |
Above 200ppm (hard water areas) |
| Pipe Orientation |
Horizontal or vertical |
| Power Supply |
None required |
| Maintenance |
None required |
| Design Life |
10 years |
| WRAS Approved |
Yes |
| Part L Compliant |
Yes |
Installation Position
For maximum effectiveness, install the ElectroScale2 on the incoming cold water supply main, after the water meter and any primary filtration (such as an ADEY MagnaClean Micro or whole-house filter), but before the branch to the boiler cold feed, hot water cylinder and any other appliances. This ensures conditioned water reaches every part of the plumbing system.
The unit can be installed in either horizontal or vertical pipe runs. Use the easy-grip spanner flats to ensure the compression fittings are tightened securely — do not overtighten. Allow the standard WRAS-approved PTFE or jointing compound on threads where applicable.
Frequently Asked Questions
What is the difference between ElectroScale2 and ElectroScale (the original)?
The ElectroScale2 (SR1-03-05233) is the updated second-generation model with a revised internal design and improved performance. It replaces the original ElectroScale (SR1-03-02794) at the same pipe sizes. Both use the same electrolytic zinc anode principle. The ElectroScale2 is WRAS approved and Part L compliant.
Does it remove existing scale, or only prevent new scale?
ElectroScale2 is primarily a preventative device — it alters the crystal structure of minerals passing through it, reducing future scale deposition. In systems with existing scale, the conditioned water may slowly soften and break down deposits over time, but it is not a descaling treatment. For existing heavily scaled systems, consider a power flush or chemical descale first.
Will it affect the taste or safety of my drinking water?
No. The unit is WRAS (Water Regulations Advisory Scheme) approved, confirming it is safe for use on drinking water supplies. No chemicals are added to the water. The trace amount of zinc released is well within safe limits and typical of general plumbing materials.
Do I need to drain the system to install it?
You will need to isolate and temporarily drain the section of pipework where it is installed, but you do not need to drain the entire heating system. Turn off the water supply at the stopcock, drain the local pipework, cut in the unit using the 22mm compression fittings, then re-pressurise and check for leaks.
Is this suitable for all boiler types?
Yes. ElectroScale2 is installed on the incoming cold mains, providing scale protection for combi boilers, conventional boilers with cylinders, unvented cylinders and any other hot water or heating appliance fed from the mains. It is particularly recommended in areas above 200ppm water hardness.
Does it satisfy the Boiler Plus / Part L requirements?
Yes. Part L of the Building Regulations requires that provision is made to treat the feed water to water heaters and the hot water circuit of combination boilers in hard water areas (above 200ppm) to reduce limescale accumulation. ADEY ElectroScale2 meets this requirement and can be used to satisfy this obligation on new boiler installations.
