How to Fix a Leaking Pool Filter Relief Valve

A leaking pool filter relief valve can be a frustrating problem for pool owners. Not only can it Lead to water loss and increased water bills, but it can also indicate a larger issue with your pool’s filtration system. Fortunately, fixing a leaking pool filter relief valve is a relatively simple task that can be done by most pool owners with a few basic tools and some know-how.


The first step in fixing a leaking pool filter relief valve is to identify the source of the leak. In most cases, the leak is caused by a faulty O-ring or gasket that is no longer creating a tight seal. To determine if this is the case, carefully inspect the relief valve for any visible signs of damage or wear. If you notice any cracks, tears, or other damage to the O-ring or gasket, it will need to be replaced.

To replace the O-ring or gasket on your pool filter relief valve, you will need to first shut off the pool pump and drain any excess water from the system. Once the system is drained, carefully remove the relief valve from the filter housing using a Wrench or pliers. Be sure to keep track of any Screws or other small parts that may come loose during this process.

With the relief valve removed, carefully inspect the O-ring or gasket for any signs of damage. If the O-ring or gasket is damaged, you will need to replace it with a new one. Most pool supply stores carry replacement O-rings and Gaskets that are specifically designed for pool filter relief Valves. Be sure to choose the correct size and type of O-ring or gasket for your specific relief valve to ensure a proper fit.

Once you have obtained a replacement O-ring or gasket, carefully install it onto the relief valve. Be sure to lubricate the O-ring or gasket with a silicone-based lubricant to ensure a tight seal. Once the new O-ring or gasket is in place, carefully reattach the relief valve to the filter housing using a wrench or pliers. Be sure to tighten the relief valve securely to prevent any future leaks.

SD manual filter
Model SD2 SD4 SD10
Output Max 4T/H 7T/H 15T/H

After reattaching the relief valve, turn the pool pump back on and check for any signs of leaking. If the leak persists, you may need to repeat the process and double-check that the O-ring or gasket is properly installed. If the leak continues despite your best efforts, it may be time to consult a professional pool technician for further assistance.

In conclusion, a leaking pool filter relief valve is a common issue that can be easily fixed with a few basic tools and some know-how. By identifying the source of the leak, replacing the faulty O-ring or gasket, and ensuring a proper seal, you can quickly and effectively resolve the issue. Remember to always follow proper Safety precautions when working on your pool’s filtration system and consult a professional if needed. With a little effort and attention to detail, you can enjoy a leak-free pool filter relief valve and a crystal-clear pool all season long.