Sta-Rite
Corroded Motor Shaft at Seal Surface
Sta-Rite pool pump motor shaft shows visible rust or pitting near the seal area.
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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
Long-term leakage past mechanical seal, Aggressive water chemistry, Incorrect seal material for application (e.g., saltwater)
How to Fix / Troubleshooting
Safety: Disconnect power and remove the pump from service before working on the motor.
- Assess shaft condition: Remove the impeller and inspect the shaft where the seal rides. Light surface rust may be cleaned; deep pitting usually requires motor replacement.
- Clean minor corrosion: Use fine emery cloth to gently polish light rust, then wipe clean. Do not significantly reduce shaft diameter.
- Install new seal: Replace the mechanical seal with a Sta-Rite seal compatible with your water type (e.g., saltwater-rated seal for salt pools).
- Replace motor if severe: If the shaft is deeply pitted or grooved, replace the motor to ensure a reliable seal surface.
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Repair Difficulty
Hard
4/5
Required Part
Sta-Rite pump motor assembly
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