PVC is the worst, a 20 mills will last 1-2 years before brittle and falling apart. EPDM 45 last around 5+ years and does the same, RPE and PPl last longer but hard and costly, HDRPE, HDPE seems to be beter... PPL 36 is costly an the same or less quality than HDRPE but both are easy to install.So now that I know you have dealt with it, your personal opinion would be in comparison to epdm and PVC?
Did you seam this liner to a different liner? Or do they stand alone? I'm asking because I will have to seam my addition to the new liner and its been my biggest headache so far