joshk

Hello, need some advice from a good pool guy..... I'm a tile setter and have never tiled a pool. I got a call today to come look at a pool/jacuzzi in a hotel that the owner wants to tile. The concerns I have are how do I tell how these have been waterproofed? They're both concrete, inground, indoors. The owner said they had a sandblasting company come in and strip the jacuzzi down to the concrete. The pool seems to be some sort of rough stained concrete that they sandblasted for 3 days on but weren't able to get past the stained concrete layer. Now, I'm concerned with the sandblasting that any waterproofing that was or is there is now compromised? Any advice would be appreciated. Thanks, josh