... Resin softener)Cationic resin used for water softening, primarily to remove hardness of water. The hardness of water is a major calcium ( ... resin layer, the water of the Ca2 +, Mg2 + was exchanged resin adsorption, and other objects at the same time ... raw water and the expecting water quality. We will get back to you within 12 hours! Customized water purification system, Ro system plant, water plant