What is the correct method to clean cartridge filters?

The recommended method for cleaning cartridge filters involves soaking them in a degreaser and then hosing them off. This approach effectively removes oils, debris, and contaminants that accumulate within the filter. The use of a degreaser helps to break down any grease or organic material more thoroughly compared to simply rinsing or using a strong detergent, which may not penetrate as deeply into the filter's pleats. This cleaning method allows for better water flow and filtration efficiency once the filter is reinstalled.

Soaking the cartridges provides adequate time for the degreaser to work, ensuring that any stubborn residues are lifted from the filter media. After soaking, hosing off the filters prevents any leftover cleaner from remaining on the cartridges, which could potentially harm the pool water chemistry.

In contrast, other methods such as using a stainless steel brush could damage the filter material, while soaking overnight in pure muriatic acid is far too harsh and can degrade the filter, compromising its lifespan and effectiveness. Scrubbing with a strong detergent might not achieve the same level of cleanliness as using a degreaser, potentially leaving residues that could affect the filtration process. Therefore, soaking in a degreaser and thoroughly rinsing is the ideal method for maintaining cartridge filters.