Pure Aqua, Inc. designs and manufactures water treatment systems in addition to reverse osmosis systems. In May 2013, a brackish water reverse osmosis apparatus was executed for the use of purifying well water in Indonesia. The feed is approximately 1,000 ppm TDS and the capacity of this apparatus is 1,800 gpd. The brackish water reverse osmosis apparatus also included an antiscalant dosing system used with the reverse osmosis to treat the water. For more information click here: http://www.pureaqua.com/brackish-water-ro.html