[schamp]

I went with a DE filter and since I screened in the entire area I really could have gone with just a sand filter. DE is best but the sand works too. I went with a liner and now wish I had gone with the fiberglass for the extra 10K. Remember about the fiberglass that in about 15 to 20 years the clear coat will be gone and I have not heard of anyone that does that on old glass pools. Chemicals eat the clear coat. If you go with the fiberglass try and get some warranty against cracking. The installation is more important than you think. I would highly recommend getting a retired pool guy as a consultant. I have not found the upkeep to be a problem but remember mine is screened in, no leaves, bugs, etc. Good luck