This is accomplished easily by “backwashing” the filter. When the internal pressure of the filter rises 10 psi from when it was last cleaned, the owner knows that it is time to clean out the residue inside the sand. All sand filters have an installed pressure gauge. Sand filters are less expensive initially than their cartridge counterparts, are easy to maintain, and only require filter media changes every 5-7 years (depending on usage). The pool water filters through the sand, which catches debris and small particulates, and sends clean water back into the pool. A sand filter holds 250 lbs or more of special filter sand. Pete Alewine sells and services two types of pool filters: sand filters and cartridge filters. When the filter pump is running, water (and particulates) are pulled into the skimmers and/or drains, through the piping, into the pump, then into the filter, through the filter media, and then jettisoned back into the pool. Every pool has skimmers and some pools have one or more drains on the floor of the pool. The media that it uses to do that job (sand, cartridges, etc.), is really the only difference. When the filter is doing its job, it plays a big role in creating the crystal-clear water that every swimmer desires.Įvery filter does the same thing. Its job is to catch debris, so as to limit the particles floating out in the pool. The filter is one part of the circulatory system of the pool. That is the job of the chemicals circulated through the pool. What Does a Pool Filter Do?Ĭontrary to popular opinion, the filter attached to a pool does not sanitize the water. In your professional swimming pool opinion, should we buy a sand filter or a cartridge filter? The answer to that question comes down to what is important to you. What Kind of Filter is Best for Your Pool?
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