Pump runs but air bubbles are constantly visible in the pump basket and at pool returns

Safety first: Turn off power before tightening fittings.

• Check lid and O-ring: Clean, lubricate, and reseat the pump lid O-ring. Replace if worn.
• Tighten fittings: Hand-tighten suction unions and check valve connections. Do not overtighten plastic fittings.
• Use soapy water test: With the pump running, apply soapy water to suspected joints. Bubbles being drawn in indicate leaks that must be re-glued or replaced.
• Inspect above-ground piping: Look for hairline cracks in suction piping exposed to sun or impact. Replace damaged sections.