Ko te whakapiri tetahi waahanga nui o te whakapiri i te whakapiri, he roa te wa whakarite me te nui o te whakamahinga.Ko te punaha whakarite whakapiri tere-tere e rua e whakamahi ana i nga toki tere-tere e rua ki te uru, e tino pai ake ai te mahi whakapiri.Ka mahia te whakapiri ka rongoa ki roto i te tank nui.Ka tukuna te whakapiri ki te whakapiri i te waahanga tohatoha ma te papu teitei-nui mo te tohatoha, kia pai ai te tuku o te kounga whakapiri.Ko te tukanga he whiriwhiringa.
Ko tenei momo tātari he tātari kete me te 80 – 120 mata.He pai mo te filtration i runga i te raina o te whakapiri i roto i te punaha tuhinga pueru.