The evaporators have also to provide a sufficient supply of fresh water for the boilers, and, because their output is limited, strict economy in the use of fresh water must be observed on board a ship.
Izikhuphi-mphunga kufanele zinikezele ngamanzi aneleyo amatsha kwizibilisi, ngenxa yokuba igalelo lazo linyiniwe, umthetho ongqongqo ekugcinweni kwamanzi kumele usetyenziswe.