Reverse Osmosis (RO) is the process of Osmosis in reverse. Whereas Osmosis occurs naturally without energy required, to reverse the process of osmosis you need to apply energy to the more saline solution. A reverse osmosis membrane is a semi-permeable membrane that allows the passage of water molecules but not the majority of dissolved salts, organics, bacteria and pyrogens. By 'pushing' the water through the reverse osmosis membrane with applied pressure that is greater than the naturally occurring osmotic pressure in order to desalinate (demineralize or deionize) water in the process, allows pure water through while holding back a majority of contaminants.

Some of our clients prefer RO water, for that reason we provide this option. Although RO water is called "pure" water, one of the major disadvantages of RO water is that most of the minerals are removed from the water leaving it with an acidic pH.