Clean Cartridge Pool Filter

10 Tips to Clean a Cartridge Pool Filter in an Easy Way

Swimming pools are a valuable commodity ideal for relaxation, recreation, and social activities. A pool, however, must be maintained appropriately to serve its purpose. 


The best way to maintain a pool is to keep the filter clean and in good condition. This brief guide will walk you through the process of cleaning a pool filter cartridge, either at home or by a professional service. 


What is Cartridge Pool Filter?


Pool cartridge filters are a filtering system that helps keep water from becoming contaminated with particles. The cartridges are the heart of the system, constructed in tall cylinders and have fibers that trap dirt. 


Under pressure, these pool pump filters are housed in a pressurized tank and are stabilized by a closure plate. These plates help separate the cartridges and push water through them. The water then passes through the collector manifold and out of the tank, following filtration by the pump.


Easy Steps to Clean Cartridge Pool Filters?


Pool maintenance isn’t the most exciting part of owning a swimming pool, but this DIY guide on cleaning pool filter cartridges with the following steps can help simplify the process.


  • Disconnect the filtration system. It is recommended that the timer not be set to start while cleaning the pool automatically.
  • Take out the air from the system. If any excess air is present, slowly turn the air relief valve (usually located on top of the filter) to get it out.
  • Then remove the top of the filter to get the best results.
  • Once the filter has been removed from the filtration system. Examine the cartridge for any damage. If the cartridge is damaged, it may need to be replaced. 
  • Start using a spray nozzle for cartridge washing and gently clean any debris that you see on it. You should spray the filter right after removing it from the system so it doesn’t dry.
  • If the cartridge is still looking dirty, soak it for the night in a filter cleaner. Be sure that the cartridge is completely covered with water and a cleaner mixture in a 5-gallon bucket.
  • After the filter has been cleaned, inspect the O ring on the bottom for damage. Replace it if damaged. In case the O ring is not damaged, apply lubricant to help keep it rust-free. 
  • Again rinse the cartridge and the O ring
  • Reinstall the cartridge in the filter and turn on the pool filtration system. 
  • Make sure that the system pressure is in a normal range. It is possible that you reassembled the filter incorrectly, or something else may be wrong with the system if the pounds per square inch (PSI) is off. To fix the problem, examine the pool filter.


Bonus tip

– If you see any stubborn algae stuck to the filter cartridge, mix water with an acid form of hydronium ions to eliminate all the algae. The ions are highly concentrated, which causes the acid to spit and splash. Let the cartridge soak until all the bubbling has stopped.


How often should these cartridges be cleaned?

It is recommended that cartridges be deep-cleaned one to three times per year, depending on the usage, number, flow rate, and size of the cartridges alongside routine, light cleaning once a month. 


In addition to routine maintenance, the filter cartridges will need cleaning when the filter pressure gauge shows an eight PSI or more significant reading or when the water quality noticeably changes.


Filters with four or more cartridges referred to as cluster filters will need to be cleaned less often, while standalone filters will require filter cartridge cleaner about three or four times a year.


Final Thoughts

You can maintain your pool filter by following these steps regardless of what type of filter you have. Regular maintenance will ensure that your filter system lasts longer, works better, and keeps your pool water healthy and balanced. 


You can always hire world-class cartridge cleaning experts like Alliance Pools & Patio. We provide unmatched pool and filter cleaning services, benefitting pool owners for many years.