Izimpampu zomandla aphezulu zingcono kakhulu kuma-RO plant. Lezi ziplant zihlanza amanzi ngokususa izinto ezingavumelekile njenge-salt nezindiza. Ukwenza lokhu kufuneka kunezimandla eziningi. Izimpampu zomandla aphezulu zibhala amanzi ngamaphiltre amathile okwakithi amembranes. Uma amanzi ayagqibha kuleyo, abhala futhi abe nemiphilo yokuqonda. U-Dinghui unakho izimpampu zomandla aphezulu zezinkolo eziningi okuzokuvumela ukuthi ama-RO plant asebenze ngokulinganayo. Lezi ipampu yamansi engezinye iziqu zikhazimisekile futhi zinakho ukusebenza kwezinkinga ezingaphezu kwalokho, ngakho ke zingcono kakhulu ukulahla amanzi emaphakathi amaningi
Amaphumpa amahle amakhulu asebenza ngokuphelele kwe-RO plants. Abusisa ngamanye amazwi. Okokuqala, bakhuthaza umkhawulo owengqayizivele okufanele ukuthi wubhale umfula ngaphansi kwemembranes. Lokhu kubalulekile kakhulu ngoba imembranes ziyinkomo ezincinci ezingavumeli umfula omuhle kuphela ukuthi ayifike. Uma akho umkhawulo omubi, umfula akakwazi ukufika futhi i-RO plant ayikwazi ukwenza umfula omuhle. Okwesibili, lezi maphumpa abuyiselwe ukuze bazime ngeminyaka engaphezu kwezintfu ngaphandle kokugqibela. Lokhu kubalulekile kakhulu ngoba uma impumpa ishaya, yonke i-RO plant ingashaya futhi. Amaphumpa ase-Dinghui abuyiselwe ngamathuba amakhulu ekutheni umkhawulo nokuthi kuzobeka izimo eziphambili.