Nobel Resin Tank Structural Leak

Water leaking from the base of the resin tank

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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

Cracked resin tank, Damaged tank base from impact, Pin‑hole leak due to manufacturing defect, Over‑pressurization of system

How to Fix / Troubleshooting

Safety first: Immediately place the softener in bypass and shut off the main water supply if the leak is severe. Do not attempt to repair a pressurized crack.

  • Inspect tank: Dry the exterior and look for visible cracks or weeping at the base or sidewall.
  • Check pressure: Verify that your system pressure is within the Nobel tank rating (typically under 6–8 bar). Install or service a pressure regulator if needed.
  • Do not patch: Do not attempt to glue or patch a pressure vessel. This is unsafe.
  • Replace tank: Arrange for replacement of the resin tank with a compatible Nobel‑specified tank. The resin and control valve can often be transferred by a professional.
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Repair Difficulty

Professional Required 5/5

Required Part

Resin Pressure Tank
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