Endaweni yokuphepha nokuvikelwa komlilo, ukukhetha kwemishini kungakwenza umehluko omkhulu ekusebenzeni kokuphendula okuphuthumayo. Elinye ithuluzi elibalulekile yipayipi lomlilo le-PVC. Amapayipi omlilo abalulekile ekuletheni amanzi noma umlilo ukucima amalangabi, futhi labo abane-PVC lining banikela ngezinzuzo ezihlukile ezibenza babalulekile ezimweni ezahlukahlukene zokulwa umlilo. I-PVC, noma i-