Na'urar sanyaya ruwa ta ƙunshi sassa biyu: Harsashi na waje da harsashi na ciki.Harsashi na waje ya ƙunshi silinda, murfin rarraba ruwa da murfin ruwan baya.An samar da samfurin kayan aiki tare da shigar mai da bututun mai, bututun mai fitar da mai, bututun fitar da iska, fitilun fitilun iska, rami mai hawan igiya na zinc da ma'aunin zafin jiki.Matsakaicin yanayin zafi na mai sanyaya ruwa yana fitowa daga mashigar bututun ƙarfe a jikin silinda, kuma yana gudana ta hanyar ma'ana zuwa mashin bututun ƙarfe ta kowane hanyar zigzag a jere.Matsakaicin mai sanyaya yana ɗaukar kwararar hanyoyi biyu, wato, matsakaicin mai sanyaya yana shiga ɗaya rabin bututun mai sanyaya ta cikin murfin shigar ruwa, sannan ya gudana daga murfin ruwan dawo zuwa ɗayan rabin bututun mai sanyaya zuwa wancan gefen ruwa. murfin rarraba da bututun fitarwa.A cikin aiwatar da kwararar bututu biyu, sharar da zafi daga matsakaicin zafi mai ɗaukar zafi yana fitarwa ta hanyar fita, ta yadda matsakaicin aiki yana kula da ƙimar zafin aiki.