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Energy and Cost Savings even with your filter

There are 3 main types of swimming pool filters: (Cartridge, DE, Sand) Listed below in the order of Energy Savings.

Cartridge Filters

A clean cartridge filter element traps dirt and particles of 25-100 microns in size. During routine maintenance, the cartridge must be removed from the tank and washed thoroughly, top to bottom. Each time the filter is cleaned, some of its filtering ability is reduced. The cartridge should be replaced every 2-5 years, depending on the work it was asked to do. If the filter is undersized, and the pool has had some algae and/or tree debris every year (a common problem here in the desert), then it may last only 1-2 years. Correctly sized cartridge filters can operate for 6 months between cleanings.

Diatomaceous Earth Filters

The DE filter is the most efficient type of pool filter. It can trap particles smaller than what the naked eye can see. As with sand filters, the pressure gauge indicates a need for backwashing(forcing water to flow through the filter backwards using the backwash valves or multiport valve) when it reads 8-10 lbs. higher than its “clean” reading. After backwashing a DE filter, a new application of DE filter powder is added to the filter by pouring directly into the skimmer. A semi-annual breakdown of the filter is necessary to thoroughly clean DE filter grids. A DE filter requires a coating of DE powder on the filter grids. This is where the dirt gets trapped in your filter. The powder, when first added, dissolves in the pipe on its way to the filter tank. When it reaches the grids, the powder stops, coating the grid. The water passes on through the powder, then the fabric covered grid, leaving the dirt trapped in the DE powder coating.

Improperly serviced DE filters may have pressure rise very quickly, and if left without proper DE coating, the grids will become damaged. A properly sized and serviced DE Filter should be able to operate continuously for a period of at least 4 weeks between backwashing.

Sand Filters

The sand in a sand filter is specially graded to trap dirt particles. As a sand filter collects dirt, its efficiency increases, trapping even more dirt. When your pressure gauge shows a reading 8-10 lbs. over its clean, start-up reading, it is time to backwash (forcing water to flow through the filter backwards using the backwash valves or multiport valve) the captured dirt out of the filter.

If your filter requires frequent backwashing (it should be able to operate continuously for a period of 4 weeks between backwashing), the sand may have deteriorated. High amounts of oils from swimmers can gum up a sand bed over time. Years of a pump forcing water over the grains wear away the sharp edges of the sand (think about the Grand Canyon). Worn sand becomes circular, and traps dirt less efficiently.

At EPS, we will help you figure out the best filter for your pool. The three types of filters all clean the water at different levels of microns and have different amounts of energy that they consume.  The right filter for a pool will partially depend on what water features are present and how often the pool owner expects to clean the filter itself. Most importantly, pool filters need to match up to your pool’s hydraulic requirements. At EPS, we will help you sort through these filter options and pick the best option to maximize your swimming pool investment. 

If you are looking for a better pool filter solution, please email EPS a picture of your pool and the pool equipment pad.