Me aha mēnā he ngoikore te kounga o ngā kaiwhakahaere pahuka PVC?

I te wā e whakapūpū ana ngā rauemi, ka hangaia he mirumiru i roto i te rewa te hau e memeha ana e te kaihoko whakapūpū. Kei te kitea te whānui haere o ngā mirumiru iti ki ngā mirumiru nui ake i roto i ēnei mirumiru. Kāore te rahi me te nui o ngā mirumiru e pā ana ki te nui o te kaihoko whakapūpū i tāpirihia, engari ki te kaha hoki o te rewa polymer. Mena he iti rawa te kaha, ka taea e te hau te mawhiti ngāwari i te horapa ki te mata o te rewa, ā, ka hanumi ngā mirumiru iti ki a rātou anō hei hanga mirumiru nui. Ka herea, ka piri ngā mekameka ngota roa o ngā kaiwhakahaere whakapūpū ki ngā mekameka ngota o te PVC, ka hanga he hanganga whatunga. I tetahi taha, ka whakatairanga i te kirihou o te rauemi, ā, i tetahi atu taha, ka whakapai ake i te kaha o te rewa PVC, kia taea ai e te pakitara pūtau pahuka te tu atu i te pēhanga o te hau i roto i te pūtau pahuka i te wā e whakapūpū ana, kia kore ai e pakaru nā te koretake o te kaha. Ka taea e ngā kaiwhakahaere pahuka te whakaiti me te whakanui ake i ngā pore hua, me te hanganga pore ōrite me te tika, ka tino whakaiti i te mātotoru o te tinana pahuka. Ko te kounga iti, te koretake rānei o te horopeta o ngā kaiwhakahaere whakapūpū ka arahi ki te ngoikore o te kaha o te pahuka, ka puta he pahū, he mirumiru aho rānei.

He rerekē rawa te taumaha ngota me te matotoru o ngā kaiwhakahaere pahuka i hangaia e ngā kaihanga rerekē. Ina pakaru ngā hua pahuka, ina mirumiru rānei, ā, kāore e whai hua ētahi atu tikanga, he maha ngā pānga nui ka puta mai mā te whakakapi i te kaiwhakahaere pahuka, mā te whakanui rānei i te horopeta tika. Heoi, mā te tāpiri, te whakakapi rānei i ngā kaiwhakahaere pahuka ki ngā taumaha ngota teitei ake ka piki ake te matotoru o te hua nā te matotoru nui rawa, ka ārai i te whānui o ngā mirumiru i roto i te rewa. Ā, nā te matotoru nui o te rewa, ka heke te rere o te wai, ka puta he rerenga kore taurite o te pokepokea ai, ka pā ki te papatahi o te mata o te pereti, ā, ka poto te wā whakaputa, ka arahi ki te korenga o te whakapiri pokepokea ai, inā koa ka hangaia he pereti he iti iho i te 10mm te matotoru.