Pure Aqua designed and manufactured reverse osmosis followed by an Electro-Deionization (EDI) systems to provide purified water for a major company in Alabama, USA. The 7,500 GPD systems were designed to treat municipal tap water with a TDS of 250 ppm. The product water from the RO passes through the Electro-Deionization (EDI) to achieve resistivity of 10 to 18 megohms. For more information click here: http://www.pureaqua.com/industrial-commercial-deionizers-edi-series.html
