This punctures a disc in the top of the CO² charge, thus releasing the gas which creates a pressure in the outer container and forces the water out through the rubber discharge hose.
Oku kugqobhoza idiskhi ngaphezulu kotshajo lweCO², ngoko, ikhulula igesi eyenza uxinzelelo kwibhokisi engaphandle kwaye inyanzela amanzi aphumele ngaphandle ngokukhutshwa ngophayiphu werabha.