Aqua Dial Incorrect Plumbing / Bypass Misconfiguration

Softener installed but water is always hard, as if bypassed

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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 Aqua Dial valve, Bypass left in BYPASS position, Softener installed on a branch line instead of main supply, Internal bypass leak in valve

How to Fix / Troubleshooting

Safety first: Turn off water before altering plumbing. Depressurise by opening a tap.

  • Check bypass position: Ensure the bypass handle is in SERVICE, not BYPASS.
  • Verify pipe routing: Confirm that the mains supply enters the IN port and the house supply leaves the OUT port on the Aqua Dial valve.
  • Test hardness: Measure hardness before and after the softener. If both are the same and plumbing is correct, internal bypass may be occurring (see internal leak entry).
  • Correct plumbing errors: If inlet and outlet are reversed, have a qualified plumber re-pipe the connections.
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Repair Difficulty

Medium 3/5
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