Ukukhetha insimbi engashoseli ukushisa

Ukukhetha okubonakalayo kufanele kunake izinto eziphambili
Kumabanga amaningi avimbela ukushisa, ukukhethwa kwensimbi engamelana nokushisa okuhlangabezana nezimo zokusebenza kwezitshalo zikasimende kumele zibheke lezi zinto ezilandelayo:
(1) Ukushisa okusebenzayo kokushiyeka okungazweli kokushisa okuvimbayo
(2) Umthwalo Wemishini Wokulwa Kwensimbi Engamelana Ukushisa .
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Izitshalo zikasimende kufanele zivame ukuncipha futhi ziqoqe isipiliyoni ekusetshenzisweni kwezinkohliso zensimbi ezingamelana nokushisa zibangelwa ukukhethwa kwezinto ezingamelana nakho, futhi kusho ukuthi umenzi wokuhlaziywa kwezinto ezisetshenziswayo, futhi umenzi kufanele ahlinzeke kabusha efektri futhi abonise indlela eya efektri .