Scalemaster
Incorrect Installation / Bypass Piped Wrong
Softener installed but no improvement in limescale; taps still fur up quickly
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Inlet and outlet connections reversed on Scalemaster valve, House cold supply still connected to hard water main, Bypass loop incorrectly configured, Softener only feeding part of the property
How to Fix / Troubleshooting
Safety first: Turn off water supply before altering plumbing.
Step-by-step checks:
- 1. Check valve arrows: Confirm that the pipe marked "IN" on the valve is connected to the mains and "OUT" to the house.
- 2. Trace pipework: Verify that the kitchen cold tap and outside taps are correctly left on hard water (if desired) and that all other outlets are on the softened supply.
- 3. Test multiple outlets: Use a hardness test kit at several taps to confirm which are softened.
If plumbing is incorrect, a qualified plumber should repipe according to Scalemaster installation guidelines.
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Repair Difficulty
Hard
4/5
Required Part
Inlet/Outlet Plumbing Configuration
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