Filter Care

There are three common types of filter systems for swimming pools. Diatomaceous Earth, Cartridge and Sand. Keeping a filter clean and operating correctly is one of the most important things to do for your pool. Without proper filtration, your pool cannot be kept clean and clear.

DE filters use diatomaceous earth (DE), which is a chalky white powder made from the fossilized remains of diatoms. The DE powder is added through the pool skimmer and attaches itself to grids or fingers inside the tank. As water passes through the powder it traps particulates in the water. Once the pressure has risen 8-10lbs over the normal filter pressure the tank must be backwashed. At least twice per season the filter will need to be disassembled and the grids or fingers soaked and cleaned in filter cleaner solution. Never use household cleaner or recipes from TikTok or other social media sites in order to maintain proper filtration.

Cartridge filters use a single or series of paper-like fabric filters to filter the particulates from the pool water as it passes over the cylindrical filters. These filters cannot be backwashed and must be removed from the tank for proper soaking and cleaning. Cartridge filters can provide very good filtration but require a great deal of work in order to accomplish that goal. Always use filter cleaner solution and never use household cleaner or recipes from TikTok or other social media sites in order to maintain proper filtration.

Sand Filters use #20 silica sand in an amount specific to each individual tank size. Sand filters are easy to maintain and work by allowing water to pass through the sand grabbing particulates in the many crevices of the sand. As pressure rises 8 to 10 lbs over normal operating pressure, the filter should be backwashed. Sand should be replaced every 2-3 years for optimal filtration. Sand “filter-aids” such as cotton balls and other suggestions found on TikTok and other social media sites are not recommended for proper filtration.