Ok, I have a new question that relates....what about converting to a vinyl liner? It may cost a bit more, but should last longer/be less risky, right? Anyone done this before? I'm unsure of three things: 1) How the liner track would secure at the top of the pool? 2) how to convert the skimmer/return fittings to work with a liner, and 3) getting the custom made liner to fit nicely, because the pool is such a strange shape. Thoughts on any of this? Thanks!