Hello, first time poster here. My wife and I are currently under construction on our first pool. With all the information on this forum we dove head first into the build. It’s 45’ x 20’ with a raised spa. So to my question, we just had the waterline tile installed and finished. The tile contractor used laticrete 253 gold as his mortar. but the more I read , I feel like he should have used 254 Platinum. Will the 253 work as he claims? . Any help would be much Appreciated. Thank you