Ko te rauemi takai ā-wai he momo rauemi ā-wai i hangaia mai i te uku rapa piri-ā-whaiaro i hangaia mai i te SBS me ētahi atu rapa hangai, te uku whakakī me te uku hinu rori kounga teitei hei rauemi turanga, he kiriata polyethylene matotoru-teitei, he pepa konumohe rānei hei raraunga mata o runga, me te diaphragm kua pania ki te silicon ka taea te tihore, te pepa ārai kua pania ki te silicon rānei hei raraunga ārai ārai-piri o raro.

He momo rauemi ātete wai hou tēnei, he nui te tūmanako mō te whanaketanga. He āhuatanga ōna o te ngāwari i te pāmahana iti, te whakaora i a ia anō, me te mahi piri pai. Ka taea te hanga i te pāmahana rūma, he tere te hanga, ā, ka tutuki i ngā whakaritenga tiaki taiao. Ko te rauemi takai ātete wai arai rapa piri-ā-ringa he rauemi takai ātete wai piri-ā-ringa, he kapia ngota teitei me te arai kounga teitei hei rauemi turanga, he kiriata polyethylene me te pepa konumohe hei raraunga āhua, me te paparanga ārai wehewehe.
He kaha te mahi here o te hua, ā, he pai mō te hanga i roto i ngā taiao pāmahana teitei me te pāmahana iti. Ka taea te wehewehe ki te piri-ā-tangata potae me te piri-ā-tangata kore-potae. He mea hanga te potae mai i ngā pokapū piri-ā-tangata o runga me raro kua whakapirihia ki te turanga potae. Ko te uhi o runga he kiriata winīri, ā, ko te uhi o raro he kiriata hinu silikoni ka taea te tango. Ko te piri-ā-tangata kore-potae he mea hanga mai i te piri-ā-tangata, te kiriata winīri o runga me te kiriata hinu silikoni o raro.
He pai te ātete o tēnei hua ki te pāmahana iti. Koinei te mea pai rawa atu mō te ārai wai, te ārai makuku me te hiri mō te ara raro whenua, te kauhanga me te papa mahi wera. He pai hoki mō te hangarau ārai wai me te ārai waikura o ngā paipa. Kāore he take mō te whakapiripiri, te whakamahana rānei kia rewa. Haehaea noa te paparanga ārai, ā, ka taea te piri pūmau ki te paparanga o raro. He watea te hanganga, ā, he tere rawa te hanga.