When you see air in pool pump, it is not always a cause for concern. There may be simple reasons air is leaking through the pump system. The first step is to address where the air is so know the proper solution. Start with the most basic solution and work your way up from there so you are not spending unnecessary time and money.

Low Water Levels

There should be no air bubbles in your strainer, but if there are that signifies the air is sneaking in before or at your pump. The simple cause is low water levels in your pool. Swimming pool water needs to come half way up your skimmer, minimally. If it is not, the skimmer will suck air in resulting in bubbles. This often occurs when opening a pool or if the skimmer takes in too many leaves.

Check the O-Rings

There are two O-Rings in your pump that can let air leak through. O-Rings should be clean of any debris, free of tears or rips, and fit securely in their sockets. If any of these are not happening, air gets through and into the pump. The first O-Ring is within the strainer itself, which you can take off by removing the bolts. If that one is in good condition, the second O-Ring is located in the union prior to the pump. Before checking either of these pool solutions, ensure the power is turned off.

Mechanical Seal

The pump has a mechanical seal, also called a pump seal, on the back of it. As the pump ages, this seal often needs to be replaced and can cause air in pool pump. If the pad under your pump shows any sign of water then there is a leak. You must detect this issue early on or it can cause bigger problems with your system including need to replace the motor. It quickly becomes expensive.

If you have air in pool pump, there are a number of solutions to fix it. The water levels, o-rings, and seal are the most common causes. If it is not any of these, you should call a professional to inspect the pool for you. While the air itself is not usually alarming, it will lead to serious issues if left untreated. In an extreme situation, the pipes under your pool may need to be replaced and are allowing air in as well.

Plan the Perfect Backyard Pool with Our
FREE Guide!