Lo mgangatho ongangeni manzi ugqitywe kwangaphambili uza nezinto ezixineneyo eziphezulu ezibonelela ngokugqunywa ngokupheleleyo kwamanzi ukusuka kumphezulu ukuya kwi-subfloor.Inokuthi ngokuqinisekileyo igcine iplanga kude namanzi kunye nokufuma nge-TSR ephantsi (Inqanaba lokuDumba lokutyeba) .Ngumgangatho ogqibeleleyo - ungangeni manzi, uhlala ixesha elide. kwaye ngaphandle koxinzelelo.