Sta-Rite pool pump runs but has very low flow and the filter pressure gauge reads much lower than normal.

Safety: Turn off the pump before opening any part of the system.

• Clean baskets: Remove and clean the skimmer basket(s) and the Sta-Rite pump strainer basket. Ensure the pump basket is not cracked and seats properly.
• Inspect pump lid O-ring: Remove the lid, clean the sealing surfaces, and inspect the O-ring for flat spots, cracks, or stretching. Lubricate with silicone pool lube and reinstall. Replace if damaged.
• Check suction valves: Verify all necessary suction valves (skimmer, main drain, vacuum line) are open and not partially closed.
• Look for air bubbles: With the pump running, observe the pump lid and pool returns. Persistent air bubbles indicate a suction-side air leak. Tighten unions, replace Teflon tape on threaded fittings, and repair any visible cracks in suction plumbing.
• Prime the pump: If the pump has lost prime, fill the strainer housing with water and restart, watching for a solid, air-free flow.