: I do a lot of electrical and plumbing on my home and I would like to do things close to code but have a hard time finding out what that it. City inspectors just refer me to code books. But they are so big with info I don't need and can't find what I do need and expensive. Any good books with good info. Don't need a book to tell me how to cut a pipe. Need one that tells what size vent pipe for bathtub and how far it can be from tub.