Re-opening a pool often feels like a fresh start—until unexpected bubbles and strange noises show up. You may see an occasional bubble here or there, which is normal. However, aggressive bubbling and loud churning or grinding noises from your pump usually indicate a problem: air is leaking into the system. Below, we break down how to identify the cause and fix it.
Air Bubbles: Why Are They a Bad Sign?
- Excessive Bubbles: A steady stream of bubbles coming from the return jets means that air is being sucked into the pump.
- Noise Factor: Loud churning near the pump is another symptom of air infiltration.
- Common Culprit: Most often, the leak occurs in equipment above ground, allowing air to enter the suction side of the system.
How to Find and Fix Air Bubbles in Pools
Check Your Skimmers
- Weir Position: Make sure the weir door (the flap leading into the skimmer) is not jammed by toys or debris.
- Basket Condition: Inspect the skimmer basket to ensure it’s correctly seated and not cracked, maintaining optimal suction.
- Water Level: Keep the pool water at a recommended level (usually middle of the skimmer opening). Low water can cause the pump to draw in air.
Inspect the Pump
- Pump Lid Integrity: Even a hairline crack can allow air in. Ensure the lid’s O-ring is clean, lubricated, and seated correctly.
- Debris-Free Seal: Leaves, small twigs, or other particles can prevent a proper seal, leading to air leaks.
Evaluate Unions and Connections
- Threaded Connectors: Plumbing unions allow quick pipe replacement but can loosen over time, introducing air.
- Tighten or Replace: If you suspect a leak at a union, tighten it gently or replace worn O-rings and seals.
- Professional Repairs: If you’re uncomfortable with plumbing work, consult an experienced contractor to prevent further damage.
The Role of Pool Pumps
Pumps create circulation by drawing water from the skimmer and pushing it out through the filter. Effective circulation prevents stagnant water, aiding in overall pool cleanliness. A pump that’s sucking in air instead of water can lead to:
- Inadequate circulation and filtration
- Increased wear on the pump’s internal components
- Higher energy costs
Why Proper Pool Maintenance Matters
- Equipment Longevity: A pump pulling excessive air can overwork, causing premature failure of seals and impellers.
- Safety and Liability: Any mechanical malfunction can lead to more significant problems and potential safety issues.
- Cost Efficiency: Addressing small leaks early can save money on repairs, parts, and energy usage.
About the California Pool Association (CPA)
The California Pool Association (CPA) is a trade organization that supports owners of independent pool service, repair, and maintenance businesses. As a member, you gain access to:
- Affordable general liability insurance
- Wholesale pricing on equipment and supplies
- A wide professional network for best practices and troubleshooting advice
For more information on how the CPA can help your business, contact us today and learn how you can benefit from membership in the California Pool Association.
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