Imishini yokuhlanza amanzi enezigaba eziningi iwuhlobo lwemishini yokuhlanza amanzi esebenza kahle kakhulu, esebenzisa ukuhlunga okunezigaba eziningi, ukushintshaniswa kwe-ion nezinye izinqubo ukunciphisa ubulukhuni be-ion (ikakhulukazi i-calcium ion nama-ion magnesium) emanzini, ukuze kuzuzwe. inhloso yokuthambisa amanzi.