Umshini kakhonkolo we-foam we-HWF uwumshini wokhonkolo oyigwebu osayizi omncane, oklanyelwe ukwakhiwa okuhlangene, okulula ukuwusebenza, ohambahambayo kanye nezindleko eziphansi;
Uhlelo lokumpompa, olukhipha amagwebu kanye nokuxuba luhlangana lulonke, lulungele ukusetshenziswa;
Inesistimu yokudla eqhubekayo kanye nesistimu yokuphakelwa kwamanzi, enobude obuphezulu bokumpompa kanye nesidingo samandla aphansi.
Thatha umthombo wamandla wesigaba esisodwa, futhi amandla amaphakathi, alungele ukwakhiwa komndeni.