Kwindawo yokubekwa komgangatho wamanzi, Iimpawu zomgangatho wamanzi ezininzi ziyabonakala njengezixhobo ezibalulekileyo zokuvavanya iimpawu ezahlukeneyo zamanzi ngaxeshanye. Ezi zixhobo ziphambili ziyakwazi ukulinganisa iiparameter ezininzi ezinje nge-pH, i-turbidity, ioksijini enyibilikisiweyo, ukuqhuba, kunye neqondo lobushushu, nto leyo eyenza ukuba ibaluleke kakhulu kuluhlu lwezicelo zokujonga ukusingqongileyo