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why is my pool filter blowing out sand


Author: Poolking - Swimming Pool Equipment Manufacturer

Why is my Pool Filter Blowing out Sand?

Having a pool in your backyard is a great way to relax and enjoy time with family and friends. However, sometimes things can go wrong, and one of the most common problems pool owners encounter is having sand blown out of their pool filter. If you're experiencing this issue, you're not alone. In this article, we'll explore why your pool filter might be blowing out sand and what you can do to fix the problem.

1. The Wrong Type of Sand

One of the most common reasons why pool filters blow out sand is due to using the wrong type of sand. Not all types of sand are created equal, and using the wrong sand can cause problems. For example, some types of sand are too fine or too coarse, which can cause the sand to clog the filter or be blown out. Additionally, if the sand is not properly rinsed before being added to the filter, it can contain fine particles that will clog the filter over time.

2. Damaged Filter Parts

Another common reason why a pool filter might blow out sand is due to damaged filter parts. Over time, the internal parts of the filter can become worn or damaged, causing the sand to leak out of the filter. Check the filter housing and internal components for any damage or wear and tear that may be causing the problem.

3. Incorrect Filter Setting

Pool filters come with multiple settings, such as backwash, rinse, and filter. If the filter is set to the wrong setting, then it can cause sand to be blown back into the pool. For example, the backwash setting is used to clean the filter, and if the filter is left on this setting, it will blow sand back into the pool. Be sure to double-check that your filter is set to the correct setting.

4. High Pool Pressure

High pool pressure is another reason why pool filters blow out sand. When the pool pressure is too high, it can cause the filter and other internal components to become damaged. Additionally, high pool pressure can force sand out of the filter and into the pool. You may need to adjust the pressure or check the filter's pressure gauge to prevent this issue from occurring.

5. Broken Lateral

The lateral is a critical component of the pool filter system. It is responsible for distributing water evenly throughout the sand bed. If the lateral is damaged or broken, it can cause sand to be blown out of the filter. Check the lateral for any visible cracks or damage and replace it if necessary.

In conclusion, a pool filter blowing out sand is a common problem that pool owners encounter. By checking the type of sand you're using, inspecting the filter for damage, setting the filter to the correct setting, adjusting the pool pressure, and checking the lateral, you can fix this issue and enjoy a crystal-clear pool once again. If you continue to experience problems, it may be time to call in a pool professional for assistance.


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