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September 19 2012

kevir419ma

water filters

The majority of ground water is naturally filtered as it travels through layers of the earth into underground reservoirs known as aquifers. Water that suppliers pump from wells normally contains less organic material than surface water and may not want to go through any or all of the treatments available. The quality of the water will depend on local environments. The most used drinking water treatment, considered by many to be one of the most important scientific advances of the 20th century, is disinfection. (A lot of
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