Reverse Osmosis is a pressure driven process that raises the water pressure on the high TDS (source water) side of the membrane to well above the osmotic pressure and forces the water to flow through the membrane to the low TDS (product water) side of the membrane. Reverse Osmosis also known as hyper filtration, is used to purify water and remove salts and other impurities. It is also capable of rejecting bacteria, sugars, proteins, dyes, and other constituents.

Feed water to the systems is well water, raw water TDS is about 5,000PPM. Due to the 5,000PPM salinity, systems were designed based on TFC spiral wound membranes. Temperature ranges between 25º C and 35º C. The custom-made BWRO systems produce 3,000GPD to10,000GPD of drinking water with TDS less than 300mg/L.