Ko ngā rawhi ngongo iti te toa rongonui mō te whakau i ngā ngongo me ngā paipa i roto i ngā momo mahi. He mea nui ēnei taputapu iti engari kaha ki te whakarite i ngā hononga piripono me te haumaru, te ārai i ngā turuturu me te pupuri i te pono o te pūnaha. Ahakoa te iti o te rahi, he nui te pānga o ngā rawhi ngongo iti ki te whānuitanga o ngā ahumahi me ngā mahi.

Ko tētahi o ngā painga matua o ngā rawhi ngongo iti ko tōna maha o ngā whakamahinga. He maha ngā momo rauemi e wātea ana mō ēnei rawhi, tae atu ki te maitai kore waikura, te maitai pīataata, tae atu ki te kirihou, ā, he pai mō ngā taiao me ngā āhuatanga rerekē. Ahakoa he motuka, he paipa wai, he whakamakuku wai, he mīhini ahumahi rānei, he rawhi ngongo iti hei whakatutuki i ngā whakaritenga o tētahi tono motuhake.

I roto i te umanga motuka, he mea nui ngā rawhi ngongo moroiti mō te whakau i ngā ngongo whakamatao, ngā raina wahie, me ētahi atu wāhanga nui o te pūnaha wai o te waka. Nā tōna rahi kiato ka taea te whakamahi i roto i ngā wāhi kuiti kāore e uru ngā rawhi paerewa, ka whakaratohia he hononga haumaru, ā, ka taea te tu atu i ngā kaha o te wiri miihini me ngā piki me ngā heke o te pāmahana.

I roto i ngā pūnaha paipa me te whakamakuku wai, ka whakamahia ngā rawhi ngongo iti hei whakau i ngā ngongo me ngā paipa, kia kore ai e turuturu ngā hononga, he mea nui hoki hei pupuri i te pēhanga wai me te ārai i te moumou wai. Nā te iti o te rahi, he mea pai mō ngā mahi e iti ana te wāhi, pērā i ngā wāhi kuiti, i te wā rānei e whakamahi ana i ngā ngongo iti te diameter.

Mō ngā mīhini me ngā taputapu ahumahi, ka whakamahia ngā rawhi ngongo moroiti hei whakau i ngā ngongo waipēhi me te hau me ētahi atu wāhanga kawe wai. Ka āwhina ēnei ki te whakapai ake i te hua me te haumaru o te wāhi mahi mā te whakarato i tētahi pupuri pūmau, haumaru hoki hei āwhina i te ārai i ngā turuturu me te whakarite kia pai te mahi a te mīhini.

Mā te hoahoa o te rawhi ngongo iti ka māmā ake te tāuta me te whakarerekē, ka penapena i te wā me te kaha i te wā huihuinga me te tiaki. Mā te momo tīwiri ka taea te whakakī tika, kia tika ai te uru ki ngā diameter ngongo rerekē. He mea nui tēnei ngāwari i ngā wā e hiahiatia ana te whakakapi pinepine, te neke rānei i ngā ngongo.

Hei tāpiritanga, e mōhiotia ana ngā rawhi ngongo iti mō tō rātou pakari me te ātete ki te waikura, ā, he pai mō ngā mahi o roto, o waho hoki. Ahakoa e pāngia ana e te makuku, ngā matū, ngā pāmahana tino kino rānei, he mea hanga ēnei rawhi kia tū atu ki ngā āhuatanga kino, kia roa ai te mahi me te pono.

Ahakoa te iti o ngā rawhi ngongo iti, he nui tonu te pānga ki ngā ahumahi me ngā tono. Nā te maha o ngā whakamahinga, te pono me te ngāwari o te whakamahi, he mea nui ēnei rawhi mō ngā ngongo me ngā paipa i roto i ngā taiao motuka, putorino, whakamakuku me ngā taiao ahumahi. He mea nui tonu ēnei rawhi iti ki te pupuri i te rere pai me te whai hua o ngā pūnaha me ngā mīhini, ā, he mea nui tēnei ki a rātou.