Swimming Pool Cartridge Filters

Cartridge filters have become popular with smaller swimming pools and spas. Some people enjoy the simplicity of the cartridge filter, being there is no back washing involved. The cartridges material varies by manufacturer, the most popular is a porous paper material pressed into a corrugated design.

The cartridges are able to trap contaminates the size of 25 to 100 microns. The simple version of the principal design of filtration is that water is forced through the cartridge, thus trapping the contaminates in the pores of the filter. This is very similar to the air filter in you car.

The life of a cartridge is dependent upon the manufacturer, normally it is 1 to 2 years. this is one of the down sides to the cartridge filter system. The cartridges should be replaced more often than other types of filters. The up side to this system is the maintenance involved.

The start up pressure should be between 8 and 10 PSI. When the pressure rises this indicates a need to clean or replace the filter. It is very easy to clean the cartridge filters in these systems. By opening the top of the filter canister the cartridge is easily removed to clean. Cleaning the cartridge should be done by manufacturers recommendations. Most of the time a high pressure water hose is sufficient to clean the cartridge. The down side to this system is the cartridges loose efficiency every time they are cleaned. More good news is, there is a lot less water lost with this system, since there is no back washing involved.

The determining factors for purchasing these systems should be, the size of the pool, degree of maintenance you want to give, and the cost factor. Cartridges can cost from $50 to $100 per, so be prepared to give in order to get. These systems can be beneficial if you don’t want to spend as much time refilling the pool after you clean the filter. This system also does not involve the changing of sand, which can be labor intensive.