U.S. Motors
Suction Restriction / Impeller Clog
U.S. Motors pool pump runs but has very low flow; pressure at the filter gauge is lower than normal.
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Possible Causes
Clogged skimmer or pump basket, Debris lodged in impeller eye, Collapsed suction hose (above-ground setups), Partially closed suction valve
How to Fix / Troubleshooting
Safety first: Turn off power and close valves before opening the pump.
- Clean baskets: Remove and clean the skimmer basket(s) and the U.S. Motors pump strainer basket.
- Check suction valves: Ensure all necessary suction valves are fully open.
- Inspect impeller: If flow is still low, remove the pump housing and inspect the impeller eye for leaves, hair, or debris. Clear any blockage.
- Check suction line: For above-ground pools, inspect flexible suction hoses for kinks or collapse under suction. Replace if deformed.
- Reassemble and test: Reassemble the pump, prime, and verify restored flow and normal filter pressure.
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Repair Difficulty
Easy
2/5
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