Imishini yokuhlinzeka ngamanzi anengcindezi eqhubekayo isebenzisa amanzi omoya. Isebenzisa ithange elivalekile futhi isebenzisa{1}igesi yokucindezela okukhulu kanye nomfutho wamanzi ngaphakathi kwethangi ukuze kutholakale amanzi. Ukulandelana okukhethekile kokusebenza ukuthi iphampu yamanzi iphusha amanzi ethangini nge-valve yokuhlola, icindezela igesi ngaphakathi kwethangi futhi kancane kancane ikhulise ukucindezela. Lapho ingcindezi ifinyelela umkhawulo ophezulu oshiwo, igeji yengcindezi yokuxhumana kagesi imisa ngokuzenzakalelayo iphampu ngekhabhinethi yokulawula. Umfutho wamanzi ngaphakathi kwemishini udlula umfutho wenethiwekhi yangaphandle, futhi amanzi alethwa ngokuzenzakalelayo kunethiwekhi yokuphakelwa kwamanzi. Lapho izinga lamanzi ethangini lehla futhi ingcindezi yokwandisa igesi ngaphakathi kwethangi iyancipha ibe umkhawulo ophansi oshiwo, igeji yengcindezi yokuxhumana kagesi iqala kabusha iphampu ngokusebenzisa ikhabhinethi yokulawula. Lo mjikelezo uyaphinda, uqinisekisa ukutholakala kwamanzi okuqhubekayo. Uma igesi ethangini inganele, i-valve yokugcwalisa umoya igcwalisa ngokuzenzakalelayo.
