Idrobase
External Water Leak at Valve/Tank Joint
Water softener leaks from around the control valve or tank connections
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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
Loose tank adapter, Damaged O-ring between valve and tank, Cracked valve body, Over-tightened fittings
How to Fix / Troubleshooting
Safety: Disconnect power, close inlet and outlet valves, and relieve pressure before loosening any fittings.
- Identify leak source: Dry the area and observe where water first appears: at the valve-tank joint, side ports, or fittings.
- Tighten fittings: Gently tighten union nuts and threaded fittings by hand plus a small additional turn. Do not overtighten plastic parts.
- Inspect O-ring: If leaking at the valve-tank joint, remove the valve head and inspect the large tank O-ring. Replace if flattened, cracked, or cut. Lubricate with silicone grease before reassembly.
- Check for cracks: Examine the Idrobase valve body and tank neck for hairline cracks. Replace any cracked component.
- Retest: Slowly repressurize the system while watching for leaks.
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Repair Difficulty
Medium
3/5
Required Part
Valve-to-Tank O-Ring / Tank Adapter
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