Tsabtaccen tank yafi ƙunshi daidaitawa ruwa yankin, oxygen yankin, aerobic yankin, ruwa fitarwa yankin, wanda oxygen yankin da aerobic yankin cika cikawa, a kan cikawa haɗe da aiki microbes.(1) daidaitaccen yankin ruwa na iya taka rawar daidaitawa ta canjin ruwa, kuma kawar da abubuwan da ke dakatarwa ta hanyar toshewa, aikin ruwa;
(2) yankin oxygen deficiency zai iya cire kayan kwayoyin halitta da kuma dehydration ta hanyar denitrification;
(3) ƙarin cire abubuwan halitta daga yankin aerobic, cire ammonia da nitrogen ta hanyar nitrification, da dai sauransu;
(4) fitar da ruwa yankin da chlorine sterilization.