1. Keep the Inlet Screen and Impeller Clean
Debris, sand and fibres block the inlet and reduce flow, forcing the pump to work harder. Inspect and clean the suction screen regularly – especially after storms or when pumping dirty water.
2. Check the Mechanical Seal and Oil
A leaking mechanical seal is the most common pump failure. Look for oil traces around the seal chamber and replace the seal at the first sign of leakage before water reaches the motor.
3. Protect Against Dry Running
Running a pump without water destroys the seal and motor windings. Use float switches, level sensors or low-level protection on automatic installations, and always check the water level before starting manually.
4. Verify Electrical Connections and Insulation
Loose terminals overheat and eventually fail. Once a year, check torque on terminal screws and measure winding insulation resistance to ground – values below 1 MΩ need attention.
5. Store Spare Parts and Follow Seasonal Start-Up
Keep a spare mechanical seal, capacitor and gasket set for quick repairs. After winter storage, run the pump dry-free for a few seconds, check the rotation direction, and test under load before full service.
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