Pump runs but flow is weak and filter pressure is low.

Safety first: Turn off power before opening baskets or unions.

Step-by-step checks:

• 1. Deep clean skimmer: Remove the skimmer basket and reach down to feel for leaves or debris lodged in the suction port.
• 2. Inspect suction hose: If using a flexible hose (e.g. from a vacuum point), check for kinks or collapsed sections.
• 3. Check for air bubbles: With the pump running, look through the Davey pump lid for swirling air. Persistent bubbles indicate a suction leak; reseat and lubricate seals.
• 4. Verify valves: Ensure the main drain and skimmer valves are open enough to supply the pump.