He whānuitia te whakamahinga o te whakapūmau i roto i te hanganga, te hanga kōhua, ngā piriti rerewē, me ngā hanganga whakarewa.
Ko ngā āhuatanga matua o te whakapūmau ko: he māmā te tukanga, he pono te hononga, he ātete ki te wiri, me te ātete ki te pānga. Ki te whakatauritea ki te whakarewa, ko ōna ngoikoretanga ko: he matotoru te hanganga, he ngoikore ngā kōhao whakapūmau, 15% ki te 20% o te kaha whakawhiti-wāhanga o ngā wāhanga hono, he nui te kaha o te mahi, he nui te haruru, ā, he iti te pai o te whakaputa. Nō reira, kāore te whakapūmau i te tino ohanga me te tino piripono pērā i te whakarewa.
Ki te whakatauritea ki ngā hononga pūtu, he iti ake te ohanga me te mama o te whakapūtu, ā, he pai akehe pai mō te tāutanga aunoa. Engari kāore e pai te whakapūmau i te rivet mō ngā rauemi matotoru rawa, ā, ka uaua ake te whakapūmau i ngā rauemi matotoru. I te nuinga o te wā, kāore e pai te whakapūmau mō te tu atu ki te kumekume nā te mea he iti iho tōna kaha kume i tōna kaha kutikuti.
Nā te whanaketanga o te whakarewa me ngā hononga pūtu kaha-teitei, kua heke haere te whakamahinga o te whakapūmau. Ka whakamahia anake i roto i ngā hanganga whakarewa e tu atu ana i ngā kawenga pānga kino, i ngā kawenga wiri rānei, i roto rānei i ngā āhuatanga he iti noa te hangarau whakarewa, pērā i ngā anga kerēni, ngā piriti rerewē, te hanga kaipuke, ngā mīhini taumaha, me ētahi atu, engari ko te whakapūmau tonu te tikanga matua i roto i te rererangi me ngā waka rererangi ā-rangi.
Hei tāpiritanga, ka whakamahia ētahi hononga rivet i roto i tete hononga o ngā wāhanga kore-whakarewa(pērā i te hononga i waenga i te pereti waku i roto i te hū pēra me te hū pēra, te whitiki pēra rānei)
Wā tuku: Whiringa-ā-rangi 13-2023