Ukusukela umthombo obalekayo yinto ebalulekileyo kumboniso womthombo, umbhobho kwindima yenkqubo yolawulo, ecaleni kwendlela ebekiweyo yokutshiza ngokulandelelana kwamanzi, inokwakheka ukubaleka, ukuleqa, ukushukuma, ukutsiba, amaza kunye nezinye iipateni zamanzi aguqukayo. .