Swimming Pool Filter Medium (Sand)

Sand filters are used extensively in the water industry world  wide. Some technologies require chemicals to work while slow sand filtering can produce very high quality water removing 90% to >99% of pathogens (depending on the strains), taste and odour without the need for chemical aids. Sand filters can, apart from being used in water treatment plants, be used for water purification in singular households as they use materials which are available for most people.