He wāhanga matua te takirere pūrerehua rerekē ā-rua o te flange i roto i ngā pūnaha paipa ahumahi. He mea hanga hei whakahaere, hei aukati rānei i te rere o ngā wai rerekē i roto i ngā paipa, tae atu ki te hau māori, te hinu me te wai. He whānuitia te whakamahinga o tēnei takirere nā te mea he pono tana mahi, he roa te mau, he nui hoki te utu. Ko te ingoa o te takirere pūrerehua rerekē ā-rua o te flange nā tōna hoahoa ahurei. He tinana takirere āhua kōpae tōna me te hiri whakarewa, te hiri elastomer rānei e huri ana i te tuaka pokapū. Ko te takirere...
He mea hanga ngā takirere pūrerehua wafer mai i ngā rauemi kounga teitei hei tu atu ki ngā āhuatanga ahumahi tino uaua. Mā tōna hanganga pakari ka roa te mahi me te iti o ngā whakaritenga tiaki, ka penapena i tō wā me tō moni i te wā roa. He hoahoa kiato, he māmā hoki te takirere, he tino ngāwari ki te tāuta me te whakahaere. Mā tōna whirihoranga momo wafer ka taea te tāuta tere me te ngāwari i waenga i ngā flanges, he mea pai mō te wāhi kuiti me te tono taumaha...
Ko te takirere tirotiro hiri rapa he momo takirere tirotiro e whakamahia whānuitia ana i roto i ngā ahumahi maha hei whakahaere i te rere o ngā wai. He nohoanga rapa tōna e whakarato ana i te hiri piri, e ārai ana i te rere whakamuri. Kua hangaia te takirere kia rere te wai i te taha kotahi, me te ārai i te rere i te taha ke. Ko tētahi o ngā āhuatanga matua o ngā takirere tirotiro hiri noho rapa ko tōna māmā noa iho. He kōpae hono tōna e piu ana kia tuwhera, kia kati hoki hei whakaae, hei ārai rānei i te rere...