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We know that the major three varieties of filters available are cartridge filters, sand filters, and DE filters. Each filter has its own pros and cons. However, which one you are ultimately going to choose to filter your pool depends upon how big a pool you have. The size and the gallons of water it can hold make a huge difference. The other major factors to take into consideration include where your pool is actually located, how you can access its pump house and how much dirt actually keeps falling into the pool.
Cartridge Filters: Filtering elements in this type of a pool filter are in the shape of cylinders, which are made out of polyester or any other material known to act as a good filtering surface. When pool water passes through the cylinders of these filters, impurities are held back in them until the water is cleaned and flows out pure.
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Another great advantage of cartridge pool filters for inground swimming pools is the fact that when they do need to be cleaned, its very easy to do so. Rather than requiring backwashing, the cartridge element simply needs to be removed from the filter housing and washed down with a hose. While there are inexpensive cartridge elements available that may only last one season, there are also more expensive cartridge elements which will last at least five years. With respect to the ability of cartridge swimming pool filters to filter out impurities, they are more effective than sand pool filters as they can trap particles as small as 10 microns.
In terms of maintenance, DE filters are very similar to sand filters in that they require backwashing or draining every few weeks to keep them working effectively. The main advantage of using a diatomaceous earth filter for your inground swimming pool is that this type of filter offers the very best filtration, trapping particles as small as 2 to 5 microns. Accordingly, if you want your swimming pool water to be truly polished, DE pool filters are a great option.