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Kathleen ClarkAug 4, 2025
How to fix little or no discharge from Zoeller Water Pump?
- MMichael SaundersAug 5, 2025
If your Zoeller Water Pump has little to no discharge, the following could be the cause. Ensure the pump casing is initially filled with water. If the suction lift is too high or long, move the pump closer to the water source. Repair or replace any holes or air leaks in the suction line, using pipe tape and sealing compound. Make sure the foot valve is appropriately sized to the piping, or install one size larger. Submerge the foot valve or suction line deeper in the water. Check the motor wiring against the wiring diagram. Replace a leaking casing gasket. Finally, ensure that suction or discharge line valves are open.