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how do i get air out of my pool filter


How Do I Get Air Out of My Pool Filter?

If you own a pool, you know how important it is to keep the water clean and clear. One essential component of any pool maintenance routine is the pool filter. However, like any mechanical component, there are times when the pool filter may not be functioning correctly. One of the most common issues with pool filters is the presence of air. If you are wondering how do you get air out of your pool filter, here are some tips that may help:

1. Understand How Your Pool Filter Works

Before trying to fix the issue, it is essential to understand how your pool filter works. There are three main types of pool filters: sand filters, cartridge filters, and DE (diatomaceous earth) filters. Each type of filter works differently, and knowing its mechanics can help you identify where the problem with air is coming from. Sand filters contain a bed of sand that traps dirt and debris, cartridge filters contain pleated filter elements that filter out impurities, and DE filters use a porous powder to trap small particles.

2. Check for Air Leaks in Your Pool Equipment

If you suspect that air is entering your pool filter, one possible cause may be an air leak in your pool's equipment. Check for leaks in the skimmer and pump baskets, the filter lid, and the valves. Air leaks can cause the filter to lose its prime, which means water cannot bypass the filter, and air gets sucked into the system. Use a pipe sealant or Teflon tape to seal any leak you detect.

3. Inspect Your Filter's O-rings

Every pool filter has a set of O-rings that help prevent leaks from occurring. Over time, these O-rings can wear out or break, allowing air to enter the system. Check the O-rings on your filter's lid, pressure gauge, and drain plug. If you notice any cracks or damage, replace the O-ring immediately.

4. Ensure Your Pool Water Level is Adequate

If your pool water level goes below the recommended level, your pool filter may start sucking in air. The water level should be halfway up the skimmer opening or the midpoint of the tile. If the water level is too low, add water to the pool.

5. Clean Your Filter if it is Clogged

A clogged pool filter can cause air to build up in the system. If you notice that your filter's pressure gauge is reading above the normal range, consider cleaning it. Follow the manufacturer's instructions on how to clean your filter properly. Some filters may require backwashing, while others require disassembly.


Dealing with air in your pool filter can be frustrating, but it is a common issue that can be easily fixed. Try these tips to remove air from your pool filter, and maintain your pool in good condition. Remember to regularly check your pool equipment and perform routine maintenance to prevent future problems. A well-maintained pool filter will ensure crystal clear pool water and a safe environment for swimmers.


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