Sterling Water
Flow Restriction Through Softener
Softener causes noticeable drop in water pressure throughout the house
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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
Clogged inlet screen, Fouled resin bed, Undersized drain or plumbing, Partially closed bypass or shutoff valves
How to Fix / Troubleshooting
Safety: Do not open pressurized components. Use bypass to isolate the softener for testing.
Steps:
- 1. Compare pressure in bypass: Place the Sterling softener in bypass. If pressure improves, the restriction is in the softener.
- 2. Check valves: Ensure inlet and outlet shutoff valves are fully open and the bypass is not partially closed.
- 3. Inspect inlet screen: Clean any inlet screen on the valve.
- 4. Resin fouling: If the unit is old or exposed to iron, the resin may be plugging. Consider a resin cleaner or replacing the cation resin.
- 5. Professional evaluation: If pressure remains low despite these steps, have a technician evaluate the resin tank and plumbing sizing.
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Repair Difficulty
Medium
3/5
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