Whakamutua te rerenga e whai ake nei me te kōwhiringa pai rawa: Ka oti i a koe te whakanoho i te kirihou HDPE rewa ki roto i te pokepokea ai, me aha koe i muri mai?  Ngā kōwhiringa: - I te mea ka ngohe te kirihou i te wā e makariri ana, kia mahara ki te whakapiri i te pokepokea ai, me te whakatika i te herenga i ia 5 meneti. - Kia oti te kirihou te makariri, ka takai i tētahi rīpene rapa kaha ki te āhua mō te iti rawa 5 meneti.  Whakautu:
I te mea ka iti te kirihou i te wa e makariri ana, kia mahara ki te whakapiri i te pokepokea ai me te whakatika i te herenga i ia 5 meneti.