We are in the midst of creating a bathroom where there wasn't one. I have had my inspections and that is finaled. I am having a problem with my American Standard Cadet 3 handle faucet. The tub fill drips. The 1/2 copper pipe that feeds it is about 16" long. My problem is that we want to get the backer board up and start tiling. Is this a known problem with AS faucets? Should I go out and get a Moen, Kohler, etc...

Thanks for any and all help.