Ion exchange systems soften hard water by removing the minerals. (Calcium and magnesium that cause hardness). This system also efficiently removes ion, manganese and many heavy metals. The hard water passes through a tank containing an exchange resin. Sodium on the resin replaces the hardness minerals The sodium remains in a soluble form in the soften water. In this way the source water is well softened.
Function of water softener is to soften the water quality and reduce the hardness of water.