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how to change a pool filter cartridge


Author: Poolking - Swimming Pool Equipment Manufacturer

How to Change a Pool Filter Cartridge

If you own a pool, it is essential to maintain and clean it regularly to make sure it's in good condition. One aspect of this is changing the pool filter cartridge.

A pool filter cartridge is an essential component of your pool filter system because it helps keep your pool clean by trapping dirt, debris, and other contaminants. Over time, the filter cartridge can become clogged and dirty, which can affect its performance. This is why it's essential to change it regularly.

In this article, we will discuss how to change a pool filter cartridge, step by step.

What You Will Need

Before we start, here are the tools and materials you'll need for the job:

- A new pool filter cartridge

- A garden hose

- A pool filter cartridge cleaner

- A bucket

- A wrench or pliers

- Teflon tape

Step 1: Turn Off the Pool System

The first step in changing your pool filter cartridge is to turn off your pool system. This will help prevent water flow and ensure your safety during the process. Turn off the pool pump and the power supply to the filtration system.

Step 2: Remove the Cartridge Housing

The next step is to remove the pool filter cartridge housing. This will give you access to the cartridge. If your pool has a top-mounted filter, you'll need to remove the lid to access the filter housing. If you own a cartridge pool filter, you'll have to remove the tank clamp band.

Use a wrench or pliers to loosen the bolts on the housing. Then, remove the housing from the pool filter system.

Step 3: Remove the Cartridge

Once you've removed the housing, you can now remove the pool filter cartridge. Depending on the type of pool filter system you have, you may have to lift the cartridge out or unscrew it.

Inspect your old pool filter cartridge for any signs of debris or wear and tear. If you notice any damage, replace it with a new one immediately.

Step 4: Clean the Cartridge

Now that you have removed the cartridge, it's time to clean it. First, use a garden hose to rinse off any loose debris or dirt from the cartridge. Then, use a pool filter cartridge cleaner to deep-clean the cartridge. Follow the manufacturer's instructions on how to use the cleaner.

Step 5: Install the New Cartridge

After cleaning, you can now install the new pool filter cartridge. Align it with the filter housing and make sure it's placed correctly. If the cartridge doesn't fit, double-check if you have the right size.

Make sure to use Teflon tape on the threaded part of the housing to prevent water leaks.

Step 6: Reassemble the Housing

Once you have installed the new cartridge, you can reassemble the housing. Place the housing back in its position and tighten the bolts using a wrench or pliers.

Step 7: Restart Your Pool System

The final step is to restart your pool system. Turn on the pool pump and filter system. Check for any water leaks, and make sure the pool filter cartridge is working correctly.


Changing your pool filter cartridge is a crucial aspect of maintaining your pool's cleanliness and performance. Following the steps we have outlined above will help ensure that your pool filter system is in top shape, and your pool remains clean and safe for swimming.

By regularly changing the pool filter cartridge, you can avoid clogging and damage to your pool filter system, which can save you money in the long run. Remember always to follow the manufacturer's instructions and wear protective gear when handling the cartridge.


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