how can i clean my pool filter cartridge


Author: Poolking - Swimming Pool Equipment Manufacturer

How Can I Clean My Pool Filter Cartridge?

A clean and well-maintained pool is an absolute essential for the summers. However, it might be frustrating to see your pool filter functioning inefficiently due to clogging of debris and dirt. One of the most common pool filter types is the cartridge one, which requires routine cleaning to ensure optimal performance. Here is a step-by-step guide on how to clean your pool filter cartridge effectively and maintain it for longer usage.

1. Understand the filter cartridge

Before starting with the cleaning process, it is essential to understand the filter cartridge's structure and how it works. The filter cartridge is made up of pleated and woven polyester, with different grades and densities of the fabric. The density of the fabric determines the cartridge's efficiency in filtering out small particles and debris from the pool water. Typically, filter cartridges require cleaning after every 2-3 weeks, depending on the pool usage and the volume of debris and dirt present.

2. Prepare for cleaning

Once you know the cartridge's structure, the next step is to prepare for cleaning. Firstly, turn off the pool pump and switch off the pool heater to prevent any accidental harm. Next, remove the cartridge filter from the pool filter housing and keep it on a clean, flat surface, such as a wheelbarrow or a tarp.

3. Rinse with water

The next step in cleaning the pool filter cartridge is to rinse it with water. Use a high-pressure water nozzle or a garden hose spray to remove the debris and particles from the filter cartridge. Ensure that you aim the water spray at a 45-degree angle to avoid damaging the cartridge fabric or ruining the pleats.

4. Apply filter cleaner

Simple rinsing with water might not remove all the dirt, oils, and clogs from the filter. Therefore, it is crucial to use a quality filter cleaner that can penetrate the fabric and remove any impurities. The filter cleaner's instructions might vary, such as requiring to add to a bucket of water, spraying directly, or pouring over the filter element, so read the instructions carefully before use.

5. Soak and rinse again

After applying the filter cleaner, let the filter cartridge soak for at least 6-8 hours or overnight, as mentioned in the instructions. Soaking helps loosen the grime, oils, and particles stuck on the surface of the filter fabric, making it easier to rinse off later. After the soaking period, rinse the filter cartridge again with water to remove the loosened dirt.

6. Reinstall the filter cartridge

After completing the cleaning and rinsing process, ensure that the cartridge filter is entirely dry before reinstalling it in the pool's filter housing. Make sure that the cartridge aligns correctly with the housing and that the clamps or bolts are tightened securely to avoid any leakage. Turn on the pool pump and inspect the filter cartridge for any visible signs of leakage, such as dripping water or air bubbles in the pool.


Cleaning a pool filter cartridge might seem daunting at first, but it is necessary to maintain your pool's hygiene and longevity. By following the above steps, you can keep your filter cartridge clean and ensure optimal pool performance. Remember to clean the filter regularly and follow the manufacturer's guidelines for filter maintenance and replacement to increase the filter's effectiveness and lifespan.


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