I recently had 2 toilets reseated after installing new vinyl. When the plumber reseated the toilets he installed new wax rings, gaskets, angle stops and supply lines for both toilets. Part 1: Now the toilets don't sit flat to the floor. Both are elevated about 3/8" above the floor and the gap is sealed with silicone. I didn't notice this until after the plumber left. I called the plumber and was told that it's because of the new flooring. However it's the exact same flooring (style, manufacturer, etc.) as before, and the toilets used to sit flat on the floor. They then said it must be a problem with the subfloor. They said as long as the base is sealed it isn't a problem, but I'm not buying that. Thoughts? Part 2: After one of the toilets was reseated I noticed water hammer when it's used. I mentioned this to the plumber when he was here. He said it was unrelated to reseating the toilets and that they'd have to tear up my drywall to try to figure out where it was originating from. However, that noise wasn't there before -- only after the toilet was reseated. Not happy with the plumber's response, I called the office and was told to turn on all the water in the house to release any air that might be in the pipes, but the water hammer is still there. Suggestions?