HARD Water I N BRINE TANK V 1 OFF V 2 OFF V 3 OFF V 4 OFF V 5 OFF V 6 OFF V 7 OFF Figure - 1 SERVICE MODE To DRAIN Soft Water Out V1 V4 V3 V2 V5 V6 V7 Media vessels - C ell1 Media vessels - C ell2 Media vessels - C ell3 V 1 OFF V 2 OFF V 3 OFF V 4 ON V 5 OFF V 6 ON V 7 OFF Figure - 2 a BRINE PREPARATION MODE Soft Water Out HARD Water IN BRINE TANK To DRAIN V1 V4 V3 V2 V5 V6 V7 Media vessels - C ell1 Media vessels - C ell2 Media vessels - C ell3 V 1 ON V 2 ON V 3 ON V 4 OFF V 5 ON V 6 OFF V 7 ON Figure - 2b REGENERAION MODE V1 V4 V3 V2 V5 V6 V7 To DRAIN BRINE TANK Media vessels - C ell1 Media vessels - C ell2 Media vessels - C ell3 V 1 OFF V 2 ON V 3 ON V 4 OFF V 5 OFF V 6 OFF V 7 OFF Figure - 2c RINSING MODE BRINE TANK HARD Water IN To DRAIN Media vessels - C ell1 Media vessels - C ell2 Media vessels - C ell3 V1 V4 V3 V2 V5 V6 V7