Amanzi ahlambulukileyo abhekisela kwi-H2O ngaphandle kokungcola, okungamanzi ahlambulukileyo okanye amanzi ahlambulukileyo okufutshane.Ngamanzi acocekileyo nacocekileyo ngaphandle kokungcola okanye iibhaktheriya.Yenziwe ngamanzi ahlangabezana nemigangatho yococeko lwamanzi okusela asekhaya ngendlela ekrwada ye-electrodialyzer, indlela ye-ion exchanger, indlela ye-osmosis ebuyela umva, indlela yokuntywila, kunye nezinye iindlela ezifanelekileyo zokusetyenzwa.Unokusela ngokuthe ngqo.
Kwiminyaka yakutshanje, ngokuphuculwa okuqhubekayo kwenqanaba lenkcubeko yabantu, umgangatho wokuphila, kunye nenqanaba lokusetyenziswa, abantu baye batshintsha ukusuka kwiimfuno ezisisiseko zokuphila ezinjengokutya kunye nempahla yokunxiba ukuya ekusukeleni imveliso yendalo kunye nenempilo yokuphila kunye neendlela zokuphila.Kumanzi okusela ayimfuneko ebomini babantu, ukusebenza kucace ngakumbi.Okwangoku, isabelo semarike yamanzi okusela kwishishini lokutya kunye nesiselo lifikelele kwi-40%.Phakathi kwabo, iiakhawunti zamanzi ahlambulukileyo ngaphezu kwe-1/3.Ngoko ke, yonke inkqubo yenkqubo yokuvelisa amanzi acocekileyo kufuneka ibekwe iliso kwaye ibekwe iliso ngexesha langempela ukuze kuqinisekiswe ukuba amanzi acocekileyo abekwe kwiimarike ahlambulukileyo, acocekileyo kwaye afanelekile iimveliso ezihambelana nemithetho kunye nemimiselo efanelekileyo.
Ngenxa yokuqhuba okuphantsi kwamanzi acocekileyo, ii-flowmeters ze-electromagnetic eziqhelekileyo azikwazi ukulinganisa.
Ukongeza kwii-flowmeters ze-electromagnetic ezisetyenziswa ngokuqhelekileyo, i-Sinomeasure inokubonelela ngee-flowmeters ze-turbine ezifakwe i-clamp okanye ii-flowmeters ze-ultrasonic ngaphandle kokuphulwa kombhobho ngokweemfuno zabathengi kumlinganiselo wamanzi acocekileyo.