One of the first equipment that comes to mind when it comes to pool materials is pool filters. Pool filters work like coffee filters. They trap the dirt and allow the water to pass through. A safe swimming pool needs an efficient filter system. When opting for a pool filter, know your brands and the size of the filtration system. Major filtration systems are available in sand, cartridge and diatomaceous earth types, so if you know your pool details, you can get an effective system without worrying about whether it will work. 

Filter of choice for most spas and many smaller above ground pools, the cartridge filter is enjoying a resurgence in popularity. The cartridge filter element, an aquatic version of the pleated air filter in your car, traps dirt and particles of 25 - 100 microns in size. To clean the filter, the cartridge is removed from the tank and hosed thoroughly, top to bottom, with a garden hose. This is done as necessary to remove dirt when the pressure gauge rises 8 - 10 lbs. above its clean reading. Cartridge filters have a single layer of filter media made of synthetic fabrics attached in pleats to a cylindrical core. Water is pumped through the filter and passes through the cartridge, trapping dirt and debris in the fabric. Some spas and above-ground pools have a cartridge incorporated in the skimmer.

Cartridge filters, which are preferred as much as sand filters in pool filter systems, have a practical application method. The pool cartridge filter is more compact and economical. With the cartridge filter, there is a minimum level of water loss in pools. Cleaning of this filter is done with pressurized water and there is no need for backwashing like sand filters. The most basic definition of cartridge filter; It can be made as water treatment filters that are easy to install and use, which are used to retain unwanted substances in water.