Air in your pool pump can be a frustrating issue that affects the efficiency of your pool's filtration system. This guide will help you identify the causes of air in your pump and provide solutions to fix the problem.

Common Signs of Air in Your Pool Pump

Before addressing the issue, it's important to recognize the signs of air in your pool pump:

• Bubbles consistently streaming from the return jets
• Low water level in the pump trap
• Noisy operation of the pump
• Reduced water flow
• Cloudy pool water

Causes and Solutions for Air in Your Pool Pump

Low Water Level in the Pool

One of the most common causes of air in the pump is a low water level in the pool.

Solution:

• Ensure the water level is between 1/2 and 3/4 up the skimmer opening
• Add water to the pool if necessary

Air in the Filter Tank

Air can accumulate in the filter tank, reducing its efficiency.

Solution:

• Open the bleeder valve at the top of the filter while the pump is running
• Close the valve once water starts to come out

Faulty Pump Lid or O-Ring

A cracked pump lid or damaged O-ring can allow air to enter the system.

Solution:

• Inspect the pump lid and O-ring for damage
• Replace the lid or O-ring if necessary (browse o-rings and parts for pumps or browse o-rings and parts for filters)

Loose Plumbing Fittings

Loose plumbing fittings at the pump inlet can allow air to enter the system.

Solution:

• Check all fittings for movement
• Tighten or replace loose fittings
• Use thread seal tape for a better seal

Cracked Skimmer

Cracks in the skimmer can allow air to enter the system.

Solution:

• Use pool leak detection dye to identify cracks
• Patch small cracks with underwater epoxy
• Replace the skimmer if necessary (browse skimmers)
• Fix cracks in the skimmer using Hayward Schmear Pellets for PVC Repairs

Leaking Diverter Valve

Another potential source of air in your pool pump system is a leaking diverter valve. Signs of a leaking diverter valve include inconsistent water flow, air bubbles in the pump basket or return jets, and difficulty in maintaining proper suction.

Solution:

• Inspect the diverter valve for visible cracks or damage
• Check the O-rings and gaskets for wear or deterioration
• Tighten any loose fittings around the valve
• If necessary, replace the valve or its internal components
• Consider upgrading to a high-quality diverter valve, such as the Pentair 3 Way CPVC 1.5" x 2" Lube-Free Diverter Valve, 263035, known for their durability and leak-resistant design

Preventive Measures:

• Include the diverter valve in your regular pool maintenance routine
• Lubricate the valve's O-rings annually (if applicable to your model)
• Avoid over-tightening the valve, which can cause premature wear

Underground Plumbing Leaks

Cracks in the plumbing between the skimmer and pump can allow air to enter.

Solution:

• Conduct a pressure test on the plumbing
• Consult a professional pool service for diagnosis and repair

Preventive Measures

To avoid air in your pool pump:

• Regularly check and maintain proper water levels
• Inspect and clean the pump basket weekly
• Lubricate O-rings annually
• Schedule regular professional inspections

When to Call a Professional

If you've tried these solutions and still experience issues, it may be time to consult a pool professional. They can perform more advanced diagnostics and repairs, ensuring your pool pump operates efficiently.

By following these steps, pool owners can often resolve air issues in their pumps, maintaining a clean and efficient pool. Remember, addressing these problems promptly can prevent more serious and costly issues in the future.