Pentair Sta-Rite Failed Housing O-Ring / Seal Plate Gasket

Pump leaks water at the clamp band or housing seam.

Advertisements

Possible Causes

Flattened or cracked housing o-ring, Misaligned seal plate, Debris on sealing surfaces, Clamp not tightened evenly

How to Fix / Troubleshooting

Safety: Turn off power and relieve pressure before loosening the clamp.

  • Release clamp: Loosen and remove the Sta-Rite pump clamp band or housing bolts. Separate the housing from the seal plate.
  • Inspect o-ring: Examine the large housing o-ring for cracks, flattening, or chemical damage. Replace it if any defects are found.
  • Clean mating surfaces: Wipe the sealing surfaces on both the housing and seal plate to remove dirt or scale.
  • Lubricate and reinstall: Lightly coat the new o-ring with silicone pool lube, seat it properly, and reassemble the housing. Tighten the clamp evenly all around.
  • Test for leaks: Restore power and run the pump, checking the seam for drips.
Advertisements

Repair Difficulty

Easy 2/5

Required Part

Pump Housing O-Ring
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements