Lesi sikhwama samanzi senziwe ngezinto ezingenabuthi, ezingenaphunga, ezisobala nezithambile.Ingafakwa kunoma iyiphi igebe likabhaka ngesikhathi sokuqwala izintaba, ukugibela ibhayisikili, nokuhamba ngaphandle.Kulula ukugcwalisa amanzi, ukuphuza kulula, ukuncela lapho uphuza, futhi kulula ukukuthwala.Izinto ezilwa namagciwane ezifakwe emgodleni wamanzi zingasetshenziswa izikhathi eziningi.Ihambisana nemvelo futhi iphephile.