Pump runs but air bubbles are constantly visible at the pool return jets.

Safety: Turn off pump before opening lids or unions.

• Raise water level: Ensure water level is high enough to cover the skimmer opening fully.
• Check lid and unions: Clean and lubricate the pump lid O-ring and hand-tighten unions.
• Inspect suction cleaner: If using a suction cleaner, check its hose connections for air leaks.

Small bubbles may not be harmful but indicate a leak that can worsen; address promptly.