How To Clean A Cartridge Filter

As a swimming pool owner, you have a choice when it comes to purchasing a filter for your swimming pool. You can either choose sand, cartridge, or DE. There are numerous benefits to each but in the end, they are all unique and offer differences that should come into your decision. One advantage of having a cartridge filter is the lack of continuous maintenance it requires. Unlike a sand filter that needs to be backwashed regularly, a cartridge filter only needs to be cleaned a few times per year. When a cartridge filter needs to be cleaned, it can be a tedious process. The steps are simple, but it can take a lot of time to clean it properly. So, if your pressure gauge is 8-12PSI above the starting pressure it’s now time to take on this task. At Clark Couty Pool & Lawn we offer this service but wanted to give you the step by step process for those that want to do it at home.

1. Turn off the filtration system. Make sure the pool timer is not set to automatically turn on during the cleaning process.
2. Bleed the air slowly from the filter by turning the air relief valve, typically on the top of your filter.
3. Remove the tension clamp that holds the filter together. Each brand may have their own release mechanism, so make sure to follow the manufacturer’s instructions.
4. There may be some part holding these cartridges in place. If this is present, it needs to be removed before taking your cartridge elements out and stored in a safe and dry place.
5. Carefully and slowly remove all the cartridge elements and set them aside. It is important to inspect each cartridge for cracks, tears or other damage. If damage has occurred you will want to replace it as soon as possible.
6. Use a garden hose to rinse debris from between the pleats. Make sure to hose the inside of the filter, as well.
7. After they have been rinsed out you will need a large bucket or trash can for the next step. This step will help to remove lotions, oils, and sunscreen. You will need to soak them in a filter cleaner or detergent. This process should take about 8-10 hours. If you use a detergent only use 1 cup for every 5 gallons of water. This is one of those cases where more isn’t better!
8. After the soak has been completed make sure to hose them off again extremely well.
9. Place cartridges back in the filter, replace the lid and clamp
10. Turn on the system and open up air relief valve to remove all excess air.
11. Take note of new filter pressure and set clean and dirty numbers to help you remember when it’s time to do this process again.

Again, this service should be done whenever your pressure gauge suggests it but at minimum a couple times a year to help extend the life of the cartridges. If you should have any questions, please don’t hesitate to contact us!