auto tds controller ro manufacture in Rajkot Auto T D S Ro plan Manufacturee in Rajkot KENGEN RO MANUFACTURE IN RAJKOT WATER FILTER MANUFACTURE IN RAJKOT WATER PURIFIRED MANUFACTURE IN RAJKOT INDUSTRIAL WATER TRITMENT PLAN MANUFACTURE IN RAJKOT RO PAL MANUFACTURE IN RAJKOT SOMESTIC WATER FILTER MANUFACTURE IN RAJKOT ALKLINE ATER FILTER MANUFACTURE IN RAJKOT ALKILNE RO PLAN MANUFACTURE IN RAJKOT TDS controller is a screw-based device that controls the level of salts in the purified output water. It works as a bypass valve which takes a percentage (adjustable) of source water bypassing RO membrane to the output water, which is then filtered through a UF or carbon filter, and/or UV chamber.