Ipayipi le-HDPE liwumkhiqizo oshintshwayo wepayipi lensimbi lendabuko kanye nepayipi lamanzi okuphuza le-PVC. Kumelwe ithwale ingcindezi ethile. Ngokuvamile, i-PE resin enesisindo esikhulu samangqamuzana kanye nezakhiwo ezinhle zemishini kufanele zikhethwe.
Ukuhunyushwa ngesikhathi esisodwa kwamapayipi e-HDPE, akufanele kube ukonga kuphela, kodwa futhi kube nochungechunge lwezinzuzo ezifana nesixhumi esibonakalayo esithembekile, ukumelana nomthelela, ukumelana nokuqhekeka, ukumelana nokuguga nokumelana nokugqwala.