Pentair Sta-Rite
Damaged or Missing Drain Plug O‑Rings
Pump leaks at the drain plugs on the bottom of the housing
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Possible Causes
O‑rings lost during winterization, Cracked from age or chemicals, Drain plugs cross‑threaded
How to Fix / Troubleshooting
Safety: Turn off power and close valves to prevent water flow while servicing.
- Remove drain plugs: Unscrew the Sta‑Rite pump drain plugs and inspect the threads and o‑rings.
- Replace o‑rings: Install new OEM o‑rings on the drain plugs. Do not use tape in place of o‑rings.
- Inspect threads: Check the pump housing threads for cracks. If cracked, the housing may need replacement.
- Reinstall carefully: Hand‑tighten the drain plugs; do not overtighten, which can crack the housing.
- Check for leaks: Restore flow and observe the plugs for drips.
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Repair Difficulty
Very Easy
1/5
Required Part
Pump Drain Plug O‑Rings
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