Air bubbles in your pool pump and filter can be a frustrating issue for pool owners. Not only can it decrease the efficiency of your pool equipment, but it can also cause damage and potentially expensive repairs. Here are some of the most common causes of air in pool pumps and filters, and how to fix them:
- Low water level
One of the most common causes of air in pool pumps and filters is a low water level in the pool. When the water level drops below the skimmer intake, air can be drawn into the system, causing bubbles to form in the pump and filter. To fix this issue, simply add water to the pool until it reaches the proper level, which is usually halfway up the skimmer opening. - Leaking suction side
The suction side of your pool system includes the skimmer, main drain, and suction lines that lead to the pump. If there is a leak in any of these components, air can be drawn into the system, causing bubbles to form in the pump and filter. To check for leaks, turn off the pool pump and inspect the suction side components for cracks, loose fittings, or other signs of damage. Repair or replace any damaged components as needed. - Damaged O-ring
The O-ring is a rubber gasket that forms a seal between the pump lid and the pump housing. If the O-ring is damaged or worn, air can be drawn into the system through the pump lid, causing bubbles to form in the pump and filter. To fix this issue, turn off the pool pump and inspect the O-ring for damage or wear. Replace the O-ring if necessary, and make sure to lubricate it with silicone lubricant before reinstalling the pump lid. - Clogged skimmer or pump basket
If the skimmer or pump basket is clogged with debris, it can restrict the flow of water to the pump, causing air to be drawn into the system. To fix this issue, turn off the pool pump and clean out the skimmer and pump baskets. Remove any debris or obstructions, and make sure that the baskets are properly seated and secured in place. - Air leak in the filter
If there is an air leak in the filter, air can be drawn into the system, causing bubbles to form in the pump and filter. To check for air leaks, turn off the pool pump and inspect the filter housing and components for cracks, loose fittings, or other signs of damage. Repair or replace any damaged components as needed. - A dirty or clogged filter
A dirty or clogged filter can restrict the flow of water to the pump, causing air to be drawn into the system. To fix this issue, turn off the pool pump and clean or replace the filter as needed. Follow the manufacturer’s instructions for cleaning or replacing the filter, and make sure that it is properly seated and secured in place. - High water level
In some cases, a high water level in the pool can cause air to be drawn into the system. This is especially true if the water level is higher than the skimmer opening, which can cause water to flow back into the skimmer, creating a vortex that draws in air. To fix this issue, lower the water level in the pool until it is below the skimmer opening. - Air lock
An air lock occurs when the air becomes trapped in the plumbing lines of the pool system, preventing water from flowing properly and causing bubbles to form in the pump and filter. To fix this issue, turn off the pool pump and open the air relief valve on the filter. This will release any trapped air in the system. If this doesn’t work, you may need to manually prime the pump by adding water to the pump basket until it is full. - Pump motor or impeller issues
If the pump motor or impeller is damaged or malfunctioning, it can cause air to be drawn into the system. To check for motor or impeller issues, turn off the pool pump and inspect the motor and impeller for damage or wear. If you notice any issues, it may be necessary to replace the motor or impeller. - Improper installation
If your pool system was not installed properly, it can cause air to be drawn into the system. Common installation issues include using incorrect fittings, improperly sealing connections, or not properly priming the pump. If you suspect that your pool system was not installed properly, it may be necessary to consult a professional to identify and fix any issues.
Preventing Air in Pool Pumps and Filters
While it’s important to know how to fix air in pool pumps and filters, it’s even more important to prevent it from happening in the first place. Here are some tips for preventing air in your pool system:
- Maintain proper water levels
Keeping the water level in your pool at the proper level can help prevent air from being drawn into the system. Make sure to monitor the water level regularly and add water as needed. - Regularly clean skimmer and pump baskets
Cleaning out the skimmer and pump baskets on a regular basis can help prevent debris from clogging the system and causing air to be drawn in. - Regularly clean or replace filters
Regularly cleaning or replacing your pool filters can help prevent them from becoming clogged and restricting the flow of water to the pump. - Check for leaks and damage
Regularly inspecting your pool system for leaks and damage can help identify and fix issues before they become major problems. - Use proper installation techniques
If you’re installing a new pool system or making repairs, make sure to use proper installation techniques and follow the manufacturer’s instructions.
Conclusion
Air in pool pumps and filters can be a frustrating issue for pool owners, but it’s important to know how to identify and fix the problem in order to prevent damage and costly repairs. By understanding the common causes of air in pool pumps and filters and taking preventative measures, you can ensure that your pool system is running efficiently and effectively all season long.