- Yenziwe nge-PVC yebanga lezokwelapha engenaphunga, ukuze ilula futhi ikhululeke kakhudlwana, iqukethe imaski, ishubhu lomoya-mpilo, isikhwama se-reservoir nesixhumi.
- Yiba nemibala esobala emhlophe neluhlaza obala kuyilapho imaski yepulasitiki esobala ikwenza kubonakale, okuvumela abahlinzeki bokunakekelwa ukuthi baqaphe kangcono izimo zesiguli ngokushesha
- Zombili izinhlobo 'ezine-DEHP' kanye 'ne-DEHP mahhala' ziyatholakala ukuze uthole izinketho, kuyilapho uhlobo lwe-'DEHP mahhala' luthambekele ekusetshenzisweni kabanzi nangokwengeziwe.