Pump is very loud with a roaring or cavitation noise, and pressure gauge fluctuates

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

• Clean suction path: Remove debris from skimmer and pump baskets. Check for obstructions in suction lines.
• Check valve positions: Ensure suction valves are fully open and not partially closed.
• Inspect for air leaks: Examine pump lid O-ring, unions, and drain plugs for leaks that can cause cavitation. Repair or replace as needed.
• Review installation: If the pump is significantly above water level or suction piping is long and undersized, consult Franklin Electric installation guidelines. Re-pipe or relocate if necessary.