Izindlu zenzwa yezinga lamanzi esizikhiqizayo zincane ngosayizi, kulula ukuzifaka, futhi izinto ezisetshenziswayo azikwazi ukungena emanzini, azikwazi ukumelana nokushisa futhi zimelana nokugqwala.
Umzimba wesihlungi wezindlu uqukethe i-PP ne-SAN.Le ndlu yokuhlunga ifaneleka ngokukhethekile amazinga okugeleza aphezulu.Ezindlini zokuhlunga izingxenye ezintathu, i-bypass ihlanganisiwe.