We, ION Water Machineries, one of the Pioneer in the field of water treatment in West Bengal, Kolkata, working since 1967. We are manufacturer and supplier of various water treatment equipment such as Water softening plant. Softener is packed with high Polystyrene base resin in sodium form. During service period polystyrene base resin in sodium form absorb calcium. Magnesium in raw water and after producing certain amount of water these are exhausted. These then require regeneration with 5% to 10% Common Salt solution. In case of big units, saturated salt solution is prepared in a R.C.C. tank and required amount of brain is drawn in a brain measuring tank. The brain soln. is then diluted with the help of an injector and fed into the softener.