Pure Aqua, Inc. designs and manufactures water treatment systems in addition to reverse osmosis systems. This reverse osmosis system is more specifically called a nano filtration system and operating in Australia once it was completed in March 2013. This system was created with a capacity of 27,000 gpd from a well water feed at about 1,000 ppm TDS. Once the water has been filtrated by the system it should be at 200 ppm. This particular system included a prechlorination for disinfectant and antiscalant dosing system. For more information click here: http://www.pureaqua.com/reverse-osmosis-systems.html