Isistimu yokufafaza okuzenzakalelayo ingenye yezinhlelo zokucisha umlilo ezingaguquki ezinohlelo olubanzi kakhulu kanye nokusebenza kahle kakhulu kokucisha umlilo. Isistimu yokufafaza okuzenzakalelayo yakhiwe ngekhanda lokufafaza, iqembu levalvu ye-alamu, idivayisi ye-alamu yokugeleza kwamanzi (inkomba yokugeleza kwamanzi noma inkinobho yokucindezela), amapayipi kanye nezindawo zokuphakela amanzi, futhi ingafafaza amanzi uma kuba nomlilo. Yakhiwe ngeqembu lama-alamu e-alamu elimanzi, isifafazi esivaliwe, inkomba yokugeleza kwamanzi, i-valve yokulawula, idivayisi yokuhlola amanzi okuphela, ipayipi kanye nezinsiza zokuhlinzeka ngamanzi. Ipayipi lesistimu ligcwele amanzi anomfutho. Uma kuba nomlilo, fafaza amanzi ngokushesha ngemva kokusebenza komshini wokufafaza.