how do i clean my cartridge pool filter


Author: Poolking - Swimming Pool Equipment Manufacturer


Cartridge pool filters are an essential component of any swimming pool. They filter out the impurities and debris to keep your pool water clean and safe. However, after prolonged use, these filters can become clogged with dirt and debris, making it tough for water to pass through. Cleaning cartridge pool filters is necessary to maintain their efficiency and longevity. In this article, we will explain how to clean cartridge pool filters easily and effectively.

What is a Cartridge Pool Filter?

A cartridge pool filter is a type of pool filter that works by trapping impurities and debris in a cartridge element. The cartridge element is made of pleated polyester fabric, and it can trap particles as small as 10-15 microns. These filters are easy to install and maintain, and they are more energy-efficient than other types of pool filters.

Why Do You Need to Clean Your Cartridge Pool Filter?

Cleaning cartridge pool filters is essential because they can become clogged with dirt and debris, which can reduce their efficiency. When a filter becomes clogged, it makes it tough for water to pass through, which can lead to increased pressure on the pool system. This increased pressure can damage the pool pump or cause it to overwork, leading to higher energy costs. Additionally, when a pool filter becomes clogged, it can no longer effectively remove impurities and debris from the pool water, leading to dirty and cloudy water.

How Often Should You Clean Your Cartridge Pool Filter?

The frequency of cleaning cartridge pool filters varies depending on the size of the pool, the usage, and the type of filter. As a general rule, you should clean your cartridge pool filter every 3-6 months. However, it is always a good idea to inspect the cartridge frequently and clean it as needed. If you notice that the water pressure in your pool has reduced, it is a sign that your filter needs cleaning.

How to Clean Your Cartridge Pool Filter?

There are several ways to clean cartridge pool filters, but the following steps are the most effective:

Step 1: Remove the Filter

The first step is to turn off the pool pump and remove the cartridge filter from the filter housing. You should wear gloves to prevent contact with any chemical residue that may be present on the cartridge.

Step 2: Rinse the Cartridge

Using a garden hose, rinse the cartridge to remove any loose debris or dirt. Be sure to rinse both the inside and outside of the cartridge with moderate water pressure.

Step 3: Soak the Cartridge

In a large bucket, add a cartridge cleaning solution, and soak the cartridge for a minimum of 8 hours or as recommended by the manufacturer. This solution helps to dissolve oils, grease, and other contaminants that have accumulated on the cartridge.

Step 4: Rinse the Cartridge again

After soaking, rinse the cartridge thoroughly with clean water using a hose. Make sure all the cleaning solution has been washed off thoroughly.

Step 5: Allow Cartridge to Dry

Allow the cartridge to dry completely before re-inserting back into the pool filter housing. You can place it in a sunny, dry spot to speed up the drying process.

Step 6: Check the Filter Housing

While the cartridge is drying, check the filter housing for any debris or dirt. Clean the housing if necessary.

Step 7: Re-insert the Cartridge

Once the cartridge is dry, re-insert it back into the filter housing. Ensure it is installed correctly and securely, and then turn on the pool pump to resume filtering.


Cleaning your cartridge pool filter is a crucial maintenance task that should not be overlooked. With the above steps, cleaning your cartridge pool filter will be an easy and effective chore. It is important to clean the filter regularly, as it not only helps to maintain the efficiency of the filter but also keeps your pool water clean and safe. With these tips and guidelines, you can keep your pool water sparkling all season long.


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