I'm trying to replace my tub faucet because the old one sat about 1/8" away from the wall and felt loose. As it turns out this is most likely because the pipe coming out of the wall is 1/8" too long. It's a 3/4" pipe threaded at the end and it seems like most faucets using this connection require that pipe to be exactly 4" out of the wall (or probably slightly less to be honest) but this pipe is 4-1/8".
I want the new faucet to fit snuggly against the wall but it has the same issue as the old one, fully threaded on it's still about 1/8" away from the wall. I do have a pipe cutter but I don't think it would work very well on the threaded section of the pipe, however I was thinking if I just extend the threads on this pipe another 1/8-1/4" I should be able to thread the faucet on further because the female threaded section of the faucet looks significantly longer than the male threaded section of the pipe.
Is that a bad idea, and should I just cut the pipe somehow to be the correct length? Also if I do end up needing to cut the pipe is there a correct way to cut cleanly through the threaded area?