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Your pool cartridge filter helps capture debris and all types of solid contaminants from your pool water. Over time, these contaminants can start to build up around the pleats of your filter cartridge and reduce its efficiency. You may clean the cartridge regularly, but they will need to be replaced at some point. 

On average, you should change your pool cartridge every 1-2 years, depending on usage, water quality, and other factors. 

How To Change Cartridge Pool Filter Step By Step?

If you are unsure how to change the cartridge for your pool filter, here is a simple guide to help you out.

1. Get a Replacement Cartridge

You should start by sourcing a quality replacement for your pool cartridge filter. There are many suppliers out there and several varieties to consider. Replacement of your cartridge is always easier for lightweight, compact filters such as the Poolking Single Element Cartridge Filter

Poolking Single Element Cartridge Filter

2. Switch Off Pump

Once you have your replacement pool filter cartridge ready, start by switching off the pump for your pool. This will prevent water from flowing into the pool cartridge filter as you work. 

3. Release Air Valve

Next, you need to release the air pressure field inside the filter tank. To do so, switch open the air relief valve present on the top of your filter. 

4. Take off the O Ring and Tank Top

With the air pressure released, it is now safe to remove the filter covering. You may notice that the filter cartridge may be closed off with an O-ring, remove this and remove the tank top. Now you should be able to view the inner cartridges. 

5. Remove the Old Cartridge Filter

Now, carefully remove the old filter cartridge from the tank. Most pool filter cartridges do not have any additional attachments to sort through, so this is a pretty straightforward process. 

6. Place the New Cartridge into Position

Before placing your new pool filter cartridge, use a hose to wash away any first or debris accumulated over your filter tank. This should take a good 10-15 minutes. 

Now you can place the new filter cartridge inside. Make sure it is secured well in place. 

7. Refit Filter Lid and O Ring

Once in place, you can refit the filter lid and O ring into place. If the O-ring shows signs of wear and tear, you may need to replace it. If you leave it as is, it may lead to water leaking into the mechanism of your cartridge pool filter. Once done, switch on the air valve once again. 

8. Switch on the Pool Pump

Finally, you can switch the pool pump back on. Keep an eye on the pressure gauge; if the PSI reading falls out of the normal range, you may have installed the cartridge improperly. If the PSI reading is normal, you are good to go.  

swimming pool pump

Final Thoughts

Timely replacements of your cartridge are important if you want to keep your pool waters clean and healthy for your family. Luckily, changing your cartridge pool filter is not too complicated if you follow the steps we have outlined above. If the steps are too complicated, you can consult a professional to do the job for you. 

If you want to learn more about Pool Sand Filter, here are some answers to your questions:

How To Backwash Cartridge Pool Filter?

How Much Are Cartridge Pool Filters?

How Long Does a Cartridge Pool Filter Last?

How Does a Cartridge Pool Filter Work?

Easiest Way To Clean Pool Cartridge Filters

How to Put Sand in a Pool Filter?

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