Ukudla amanzi esihlangu esihle kuyisiphepho esikhulu kuzo zonke izinhlanganiso, futhi ngamahhala amanzi asebhaleni asinezinto asingadingi. Lokhu kukuphela kwezinhlanganiso ezithile, njengezinhlanganiso zokuhlanza amanzi ngo-RO. Lezi zinhlanganiso ziyizibonakalisi ezinkulu kumaqandu. Ziqondisa amanzi amahhala futhi ziyenza zibe yinkulu. Bheka umkhakha wokuhlanza amanzi kodwa okubanzi nokukhulu, kuhle kwezindlu noma kwezinhlanganiso. I-RO ibonakalisa ukuthi kusenziwa ukuthinteka kwamandla, okusho ukuthi amanzi athintekwa ngomandla kumembrane eyodwa, futhi izinto ezingavumelekile njengezilwane, izinkulu, nezinye izinto ezincane zikhiywa emuva. Le nhlanganiso iyisiphepho esikhulu kumaqandu okuhlanza amanzi okudla noma okusebenziswa ngayo, futhi iyathinta ubuso ngokuvamile ngaphandle kokuthi kufika kuphi.
Ukukhetha isikhundla sesiRO sokususa amanzi esebenza kakhulu, akungabi isikhundla esincane kuphela; kukhetha umphathi owenzekile okunakekile amanzi okuphelele okufuneke ukusebenza kwakho. Hlakula ukuthi ubenza yini. Uma ubhantshisi, udinga amanzi okuphelele ukuzenza izinkomishi nezindlu zokudla, noma isifactory sisebenzisa kuzenza? Isivinini samanzi ngosuku sikhulu kakhulu. Umkhumbi wamaphakade amancane, isikhundla sesiRO se-Dinghui esincane singasekholwa. Kodwa uma uyasebenza kuzenza amanzi okuphelele, udinga isikhundla esikhulu nokuthi esibonakalayo. I-Dinghui iyazi lokhu, ngoko sithumela isikhundla sokukhetha izinyathelo. Ungadinga isikhundla esingakwazi ukubona, okuyenza ukuzimela kwezinkinga, abantu abangakholwa, futhi akungabi enkulu kakhulu ukuthi kuhlose amandla nezimali. Ngabanye abasikholelwa kumiphumela eyonke, siyabo Isistimu esigcwele sokuhambisa izinkampani kungasekholwa.