AquaHouse
Control Valve to Tank O-Ring Leak
Water softener leaks from around the control head where it mounts to 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
Damaged tank O-ring, Cracked tank neck, Loose control valve mounting, Debris on sealing surfaces
How to Fix / Troubleshooting
Safety first: Unplug the unit, place it in BYPASS, and depressurize by opening a downstream faucet. Have towels or a bucket ready.
Step-by-step:
- 1. Inspect externally: Dry the area and confirm the leak originates at the valve-to-tank joint, not from plumbing fittings.
- 2. Remove control head: Disconnect plumbing unions and carefully lift the AquaHouse control valve straight up off the tank neck.
- 3. Inspect O-ring and neck: Examine the large tank O-ring for cuts or flattening. Check the tank neck for cracks.
- 4. Clean and replace: Clean the sealing surfaces and install a new AquaHouse tank O-ring lubricated with silicone grease.
- 5. Reinstall and test: Re-seat the valve, reconnect plumbing, return to SERVICE, and pressurize slowly while checking for leaks.
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Repair Difficulty
Hard
4/5
Required Part
AquaHouse Tank O-Ring
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