AquaJet Suction-Side Air Leak

Pump runs but there are large amounts of air bubbles visible in the pump lid and at the pool returns.

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Possible Causes

Loose pump lid, Cracked suction fitting or union, Low water level drawing air into skimmer, Air leak at suction valve stem

How to Fix / Troubleshooting

Safety first: Turn off power before tightening fittings or opening the pump.

  • Check water level: Ensure pool water is high enough to fully cover the skimmer opening.
  • Inspect lid and O‑ring: Clean and lubricate the AquaJet pump lid O‑ring and ensure the lid is tight.
  • Soap test: With the pump running, apply a mixture of dish soap and water to suction‑side joints and watch for the soap being sucked in, indicating a leak.
  • Repair leaks: Tighten or replace leaking unions, fittings, or valves. Cracked fittings should be cut out and replaced.
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Repair Difficulty

Easy 2/5

Required Part

Suction Union Fitting
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