BWT Perla
Valve Head / Tank O-Ring Leak
Water leaks from around the BWT Perla valve head or top of the resin vessel
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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 valve head housing, Over-tightened or cross-threaded tank adapter, Excessive system pressure
How to Fix / Troubleshooting
Safety first: Close inlet and outlet valves and depressurize the system by opening a nearby tap. Disconnect power.
- Locate leak: Dry the area and observe where water emerges when the system is pressurized.
- Check tank connection: If the leak is at the junction between the valve head and resin vessel, the tank O-ring may be pinched or damaged.
- Remove valve head: Carefully unscrew the valve head from the resin tank following the manual. Inspect the O-ring and sealing surfaces.
- Replace O-ring: Install a new BWT tank O-ring, lubricated lightly with food-grade silicone grease. Reinstall the valve head, tightening evenly without over-torquing.
- Check pressure: Ensure system pressure is within BWT specifications. Install a pressure reducer if necessary.
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Repair Difficulty
Hard
4/5
Required Part
Tank O-Ring / Valve Head
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