how to clean a pool filter cartridge


Author: Poolking - Swimming Pool Equipment Manufacturer

How to Clean a Pool Filter Cartridge

Maintaining a clean and sanitized pool is essential for both aesthetic and health reasons. Pool filters play a critical role in this regard, as they are responsible for removing contaminants, dirt, and debris from the water. The cartridge filter is one of the most common types of pool filters, and its maintenance is essential for pool owners. In this article, we'll discuss how to clean a pool filter cartridge.

Why Clean a Pool Filter Cartridge?

The pool filter cartridge traps debris, dirt, and other contaminants from the pool water. Over time, the cartridge becomes clogged, which reduces the filter's efficiency and performance. A dirty pool filter cartridge can also lead to algae growth and cause the pool water to become cloudy. Therefore, it is essential to clean a pool filter cartridge regularly.

When to Clean a Pool Filter Cartridge?

The frequency of cleaning a pool filter cartridge depends on several factors, including the pool size, usage, and weather conditions. Typically, pool owners should clean their pool filter cartridge at least once a month during the swimming season. However, if the pool is heavily used, or there is a lot of debris and leaves in the pool, it may require more frequent cleaning.

How to Clean a Pool Filter Cartridge?

Cleaning a pool filter cartridge is a relatively simple process that can be completed in a few steps.

Step 1: Turn Off the Pool Pump

Before starting the cleaning process, turn off the pool pump and disconnect any power source. This will ensure your safety while cleaning the pool filter cartridge.

Step 2: Remove the Cartridge

Next, remove the pool filter cartridge from the filter housing. Most cartridge filters have a latch or clasp that secures the filter in place. Open the latch and remove the filter cartridge.

Step 3: Rinse the Cartridge

Rinse the pool filter cartridge with a high-powered hose nozzle to remove loose dirt and debris. Direct the water flow at a 45-degree angle to avoid damaging the cartridge's filter media. Start from the top of the cartridge and work your way down.

Step 4: Soak the Cartridge

Once you have rinsed the pool filter cartridge, soak it in a filter cleaner for at least 8 hours. Make sure the filter cleaner is compatible with your pool filter cartridge. Follow the manufacturer's instructions on the amount of cleaner and water ratio.

Step 5: Rinse the Cartridge Again

After soaking, rinse the pool filter cartridge again with a high-powered hose nozzle to wash away any remaining contaminants and filter cleaner. Ensure all filter media is free from chemicals.

Step 6: Reinstall the Cartridge

Once the cartridge is rinsed and dried, reinstall it into the filter housing. Make sure the cartridge is correctly aligned before securing it in place with the latch or clasp.


Cleaning a pool filter cartridge is a crucial part of pool maintenance. A clean pool filter ensures optimal pool performance and reduces the risk of pool-related health issues. By following the simple steps outlined above, you can keep your pool filter cartridge clean and extend its lifespan. Remember to check your filter cartridges every month and clean them as required. With a clean pool filter cartridge, your pool will always be in top condition, and you will have a fun and safe swimming experience.


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