Speck Pumpen Loose Impeller or Cavitation

Pump makes a loud rattling or clattering noise, especially at startup or shutdown.

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.

Possible Causes

Impeller not fully tightened on shaft, Broken impeller hub, Pump running with insufficient suction head causing cavitation, Air pockets in volute

Safety first: Disconnect power and close valves before opening the pump.

Check impeller mounting:

Remove the pump housing and inspect the Speck impeller. Ensure it is firmly threaded or bolted to the motor shaft.
If the hub is cracked or stripped, replace the impeller.

Address cavitation:

Ensure suction valves are fully open and suction lines are not undersized or excessively long.
Verify adequate water level and that skimmers are not drawing air.

Reassemble and test. Persistent rattling may indicate further internal damage requiring part replacement.

Medium 3/5

Speck pool pump impeller

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