What is a Pool Filter and Why do You Need it?
How it Works
A pool filter works by cleaning out all the dirt, debris, and other substances from the water so that the water in the pool is kept as fresh and clean as possible. This ensures the safety of you and all the other swimmers in the water, and makes sure that your pool always looks nice and clean as well.
Types
There are actually quite a few different types of pool filter to choose from, which you will need to become a bit more educated on so that you can choose just the right filter for your pool.
The sand filter is one of the most commonly chosen, and here water is pushed through a bed of filter sand and then removed through a set of lateral tubes at the bottom. The filter area of a sand filter is equal to the area of the filter itself. Dirty water goes into the top of these filters and then the clean water exits out the bottom.
They are very affordable and work very efficiently, which is why they are so popular. They make a great choice for all types and sizes of pools.
Another type of pool filter that you may want to consider is cartridge. Known for being the economic low maintenance filter, this is the perfect choice for homeowners who are frequently away from their home and do not always have the time to keep up with the changing of the filter.
Here water passes through a filter material and the filter captures the debris. Cartridges have much more available area to filter than the sand do, so they will not need to be changed nearly as often.
There are also the diatomaceous earth filters which are very small and are able to filter out particles as small as 5 microns. These are the most expensive but definitely the most effective as well at filtering out the dirt from the water. The DE filters run at higher pressures than cartridge filters and as such can lead to some flow loss.
Make sure that you really put some thought into this, and use the type and size of your pool to determine which filter will be best.
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