1. pre chlorinationthe raw water will be chlorinated disinfected by means of dosing sodium hypochlorite to prevent future infection2. Dual media filter the raw water is first passed through a dual media filter to reduce the suspended solids and organic matter present in the raw water. Dual media filter bed consists of carbon and sand media. The filter will have to be washed with the help of raw water for 10 to 15 mins daily. This filter is provided to keep a check on the suspended solids.3. Softening the filtered water from the filtered water tank will be fed to the one bed softener. the one bed softener consists of a cation exchanger unit. In the strong acid cation exchange na-type the resin bed is regenerated with nacl. The ca++ and mg++ ions present in the water are exchanged with na+ ions available in the resin and water is softened