Quartz sand for filters

The most common filter media for pool filter is a quartz sand. Why quartz? The thing is that it is in the quartz contains almost no clay and impurities, which can leach into the water that passes through the filter material. Filter is used as river basins, and silica sand quarry. Because the percentage of silica in it is 98%, silica sand is excellent for mechanical cleaning vody.Pesok filters used different factions depending on what size of a filter and its power. Usually this fraction from 0.5 mm and ending 5 mm. Please note that when you buy one bag of sand in it will be submitted to different factions that are suitable for a particular filter moschnosti.Pered how silica sand is suitable for use in the filter, it had to be purified by calcining. This technology allows you to remove dirt and impurities from the sand and make it relevant to all norms and standards, and only then is bagging for final potrebitelya.Srok service quality silica sand can be up to (4-5) years in seasonal pools and (2 - 3) year-round pools, provided that the filter is properly configured. In addition, you extend the life of the sand, if you will make time to clean it. Under these conditions, you will be able to replace the sand in the filter, not more than 1 time in 3-4 years, or just there to fill up the new sand.