Njengoba sonke sazi, ekhishini nasendlini yokugezela, abantu babhekana namanzi ngaso sonke isikhathi, futhi kunzima ukugwema ukufafaza amanzi phansi ngokuwasha i-gargle.Ukuze kugcinwe ukuhlanzeka, phansi eduze nekhishi, indlu yokugezela kanye nomshini wokuwasha ngokuvamile kudingeka kugezwe.Amanzi angcolile okugeza phansi nawo adinga ukukhanywa ngamanzi aphansi.Kodwa ngokusho kophenyo, ama-drain aphansi ajwayelekile avame ukuba nenkinga yokukhipha iphunga, ikakhulukazi ngenxa yokuthi ukuvala ama-drain aphansi asetshenziswa amayunithi okufaka akuhlangabezani nezidingo.Ngamafuphi, ekwakhiweni kwezindlu zomphakathi, ukufakwa kwe-drain floor ekhishini, indlu yangasese kanye negumbi lokuhlanza kuhlobene ngokuqondile nezithakazelo ezisheshayo zabahlali.Besilokhu siphishekela ukwakhiwa kwe-drain yaphansi ngendlela enengqondo, esebenzayo, sethemba ukuthi wonke umuntu uzokhathalela izinkinga zokuhlala.