Umthombo ungenye yezinto ezivame kakhulu zamanzi asengadini, futhi usetshenziswa kabanzi ezindaweni zasendlini nangaphandle, njengezikwele zedolobha, izakhiwo zomphakathi noma njengengxenye yezakhiwo nengadi. Akuyona nje ubuciko obuzimele ngokwayo, kodwa futhi ingandisa umswakama womoya endaweni yendawo, inciphise uthuli, futhi ikhulise kakhulu ukuhlushwa kwama-ion oksijini angalungile emoyeni, okubuye kube nenzuzo ekuthuthukiseni imvelo nokuthuthukisa impilo yabantu ngokomzimba nangokwengqondo.
Kunezinhlobo eziningi zemithombo, ezingahlukaniswa cishe zibe: imithombo evamile yokuhlobisa, imithombo ehlanganiswe nezithombe eziqoshiwe, izithombe eziqoshiwe zamanzi, nemithombo ezilawulayo. Ngaphansi kwezimo ezijwayelekile, indawo yomthombo ngokuvamile itholakala maphakathi nesakhiwo noma indawo okugxilwe kuyo noma ekugcineni kwesikwele. Kungenzeka futhi ukwenza eminye imithombo emincane ngokusho kwezici zemvelo futhi uhlobise ngokukhululekile izikhala zangaphakathi nezangaphandle. Umthombo kufanele ubekwe endaweni evikelekile ukuze ugcine uhlobo lwamanzi.
Ichibi lomthombo lisesimweni semvelo futhi ligcwele. Indawo yesifutho samanzi ingaba phakathi nendawo echibini, noma ingafakwa ohlangothini olulodwa noma ngokukhululekile. Ifomu, isikali kanye nobukhulu bamanzi okufuthwa kufanele kunqunywe ngokwesilinganiso sendawo yendawo yomthombo.
Ngokwezici zemvelo zeso lomuntu, ngomthombo, umfanekiso, umbhede wezimbali nezinye izigcawu, i-engeli yokubuka eqondile ine-engeli yokubuka enhle ngamadigri angu-30 kanti i-engeli yokubuka evundlile ingama-degree angu-45. Umugqa ofanelekile wokubonwa komthombo uphakeme izikhathi ezi-3.3 kunesifutho samanzi. Yiqiniso, kungenzeka ukusebenzisa umugqa wokubona ofinyeziwe ukuze ubangele ukubheka phezulu. Irediyasi yechibi kufanele ilingane nobude bekhanda lomthombo. Ngokuvamile, i-radius ye-pool iphindwe izikhathi ezingu-1.5 kunomthombo. Uma i-radius incane kakhulu, amaconsi amanzi kulula ukuchaphaza. Ukuze wenze imigqa yesifutho samanzi ibonakale, kuhle ukusebenzisa indawo emnyama njengengemuva.