The Reverse Osmosis Plant manufactured by us carries out the reverse osmosis process which is done for the removal of practically all inorganic salts by membrane technology. In this process, water is passed through cellulose acetate/poly amide semi permeable membranes at pressure above Osmotic pressure. Due to high pressure the salt and pure water separates through semi periable membranes. The process of demineralization by ion exchange has the limitation when TDS of raw water is above 1500 ppm, or it is not a viable process for brackish water and salty water contains higher dissolved salts. To overcome such difficulty reverse osmosis technique is used removes all the unwanted inorganic salts like calcium, magnesium, sodium, chloride, sulphates, nitrates, silica etc. From the water having high TDS, the process is most economical. It is possible to achieve conductivity below 1 microseimenns/cm2 of treated water and silica below 20 ppb when RO+DM with proper scientific design depending on raw water quality.