I. Pool & Spa Cartridge Filters

Spa Cartridge filters consist of pleated fabric, typically polyester, arranged in a cylinder form around a rigid core. The fibers of the polyester trap dirt and oils as the water passes through from around the outside of the cylinder and is returned back through the pool or spa from the center core. While not regarded as being as efficient as Diatomaceous Earth (DE) filters, cartridge filters are gaining wider use particularly in residential pool and spa applications because they are easy to operate and if damaged or worn out, easily replaced.

Cartridge filters will give long and useful service when properly cared for. The most important first step in keeping your cartridge circulating properly is to make sure it is always clean. Periodic rinsing of the spa or pool cartridge will help to remove larger debris and particles. One should note, however, deep cleansing will not just ensure better water clarity but extend the life of the cartridge filter as well.

Deep cleaning is best accomplished by using a cleaner specifially formulated for pool or spa filters. Such a cleaner should be capable of removing both oily and greasy buildup, as well as minerals such as calcium that may have been deposited on the fabric over time. A good pool filter cleaner, either specifically made for cartridge filters or one made for all types of filters, will contain a combination of surfactants for oil and grease removal, as well as agents designed to dissolve build up on the filter itself.
Here are some of our most popular cleaners:
Spa Cartridge Filter Cleaner
Pool Cartridge Cleaner

Another way to help extend the life of the cartridge is to keep two sets, one set in used and a clean set ready to go. This allows you to quickly exchange the cartridges when needed without stopping the pool or spa while cleaning occurs. Once cleaned, allow the cartridges to dry before reinstalling them. This allows the fibers in the cartridge to expand and fluff up thus providing more cleaning effectiveness.