Ponds when used on a continual basis become dirty and then pool users need to manually add chlorine and channel fresh water in the pond. The cloudy water of pools after replacement still requires maintenance as there remains the possibility that they will turn cloudy again. So, a new method for keeping pools safe and clean was intently required. The earlier pool filtration methods there were present did not serve the purpose completely. The filtration need then led to the discovery of a new type of filter known as [...]

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