... micro impurity, overfull inorganic salt , organic compounds, heavy metal ion, bacterial and virus, its’ aperture is only 1/10000 ... price, to get more informations, pls comtact us www.fuyuanda.netSoften water technologyWhen hard water passes through the cation resin in the exchange ... is discharged with the renewable liquid, to regain the exchange resin capacity in order to continue to soften water.The ...