Ukufumana indlela enenhloko yokuthenga umshweshwe wamanzi, ibalulekile kakhulu, isibonelo uma kudingeka amanzi amaningi. Lezi zinhloso, ozwa zizwakalwa ngokuthi ziyizinhloso ze-RO ngoba zisebenzisa ukubuyisela kuma- Osmosis ukusula amanzi, zinconywa kakhulu ukuthola amanzi okukhuluma ngokuphelele. Uma ubuka ukuthenga amanji amaningi, isibonelo uma kufanele kwenziwe kumfundo, esikoleni noma ekhaya lokugcina amadwaba, ufuna ukungathengi kakhulu. Lokho ke yilokho okunakekile ukuzifunda ukuthi iphuzu yamanzi iyiphuzu njani. Akukho phuzu kuphela; amazwi amaningi akhona ekutheni uyathengisa. U-Dinghui uyazi lokhu, futhi sikhuluma ngezinye izinhloso zethu ukuthi sithengeke ukuthenga amanji amaningi noma amabili. Sisebenza ukuze sithengeke izinhloso ze-RO zethu zibe yezinhloso eziningi zokusula amanzi kodwa zibe yezinhloso ezincinci, isibonelo uma kuthengiswa amanji amaningi. Sizazi ukuthi kumfundo, isilinganiso sesinye singasemthwakini, futhi sifuna ukuthi ube yindlela enenhloko yokuthenga iqembu elikhulu eliqinile ngaphandle kokuthi uphinde uthengise isikhundla sakho. Ngakho-ke, siza kubona ukuthi ungathenga njani ukuthenga amanji amaningi ase-Dinghui ngokuthi uthole isidingo sakho esikhulu.