I have a question about stone ledger wall materials. I would like to use a natural quartz ledgerstone on a new pool/Spool build. The stone will be installed on a 3 foot high wall above the waterline. There will be a waterfall feature that spills over the wall into the pool, so part of the wall will be splashed with pool water and chemicals. My question is, can I install ledgerstone from a Floor Decor type store that has an outside weather rating, or one that is rated for outside/shower use, or am I limited to just what pool tile manufacturers are offering? Is there more to pool ledgerstone? For example is the glue different? The stone panels that I prefer are the pastel colors, and I can't find this in a ledgerstone from a pool supply company.