why is my pool filter pressure low


Author: Poolking - Swimming Pool Equipment Manufacturer

There are a variety of reasons why your pool filter pressure could be low. Diagnosing the problem and fixing it quickly is essential for maintaining the health and cleanliness of your pool. In this article, we’ll explore some of the most common causes of low pool filter pressure and how to fix them.

Subheading 1: Dirty Filter

One of the most common culprits behind low pool filter pressure is a dirty filter. Over time, your pool filter will become clogged with debris, preventing it from working efficiently. When this happens, the filter pressure will drop.

The solution to this issue is simple – clean your pool filter. Depending on the type of filter you have, this may involve backwashing, hosing down the filter element, or soaking it in a cleaning solution. By cleaning your filter regularly, you’ll ensure that it is working effectively and maintaining the proper pressure.

Subheading 2: Broken or Clogged Pipes

Another possible cause of low pool filter pressure is a broken or clogged pipe. If there is a break or blockage in any of the pipes leading to or from the filter, it will prevent water from flowing freely and cause a drop in pressure.

To diagnose this issue, you’ll need to inspect all of the pipes and check for any damage or blockages. If you find a damaged pipe, you’ll need to replace it; if there’s a blockage, you can try to clear it using a pipe cleaner or similar tool.

Subheading 3: Faulty Pump

The pool pump is responsible for circulating water through the filter, so if it’s not working correctly, you’re likely to see a drop in filter pressure. A faulty pump may not be pushing enough water through the filter, causing pressure to drop.

To fix this issue, you’ll need to inspect the pump and look for any signs of damage, such as cracks or leaks. You may also need to clean or replace the impeller, which is responsible for moving the water through the pump.

Subheading 4: Undersized Filter

If your pool filter was not sized correctly for your pool, it may struggle to maintain a proper pressure. An undersized filter won’t be able to efficiently filter all of the water in your pool, causing pressure to drop.

To fix this issue, you’ll need to upgrade to a larger filter that is capable of handling the volume of water in your pool. This can be a costly fix, but it’s essential for maintaining the health and cleanliness of your pool.

Subheading 5: Algae Growth

If you’re noticing low filter pressure accompanied by cloudy or green water, the culprit may be algae growth. Algae can quickly clog up your filter, preventing it from working as it should.

To fix this issue, you’ll need to shock your pool with a high dose of chlorine to kill off the algae. You’ll also need to clean your filter thoroughly to remove any algae that may be present. Once the algae is under control, your filter pressure should return to normal.

In conclusion, maintaining proper filter pressure is crucial for keeping your pool clean and healthy. By diagnosing the cause of low pressure and taking steps to correct it, you’ll ensure that your pool stays sparkling clear all season long.


Just tell us your requirements, we can do more than you can imagine.
Send your inquiry

Send your inquiry

Choose a different language
Current language:English