Been looking to purchase a 21' round above ground salt pool online and its overwhelming with what is available. Looking for durability and of a non corrosive construction and something with an easy install since I'm planning on doing the install myself. Planned on something with all resin frame components but undecided on a good steel verses aluminum wall. Liked the Aquasport 52 just because of the panel wall construction but was told by someone that it couldn't be installed totally above ground and had to be partly buried inground and wasn't sure of their warranty with saltwater use. Had an 18' Intex Ultra Frame saltpool up for about 5 years prior to and last year there weren't very many pools available. I'm ready to purchase but any recommendations or advice sure would be appreciated. Thanks much