In October 2012, Pure Aqua, Inc. manufactured and supplied a reverse osmosis machine to a major company in TX, USA to lower hardness, TDS, in addition to removing odor, color, and taste from well water. The reverse osmosis machine was designed to produce 4,500 GPD at a feed water TDS of a maximum 2,000 ppm, it was selected from our RO-200 series and came complete with a microprocessor control panel. For more information click here: http://www.pureaqua.com