Profile: Doctor Water is engaged in manufacturing and exporting mineral water plants, reverse osmosis systems & plants. We are an ISO 9001:2008 certified company. We offer reverse osmosis accessories such as filter cartridges, filter housing, fittings, membranes and booster pumps. Our de-mineralization plant is loaded with highly efficient cation and anion exchanger. It is loaded with de-gasification system to remove every trace of minerals from the system. The raw water called influent water is first passed through the cation resin bed containing SAC Resin in H + form. Ca, Mg & Na are removed, and the salts are converted to their respective acids. The corresponding acid containing anions like Cl, SO4, & NO3 are removed by passing the cation effluent through anion column containing anion resin in hydroxyl form. The hydrogen ion from cation neutralizes the hydroxyl ion, and produces pure water.