I'm trying to figure out where I may have a water leak. This is related to this question. I'm thinking capping and bypassing pipes is easy provide they do not split underground. Do/can they split underground? Ideally code would not allow it but I'm no plumber. Thanks.
Update: I think I wasn't clear when I said "split". By "split" I mean have a T that will start another run going somewhere. I'm in S. California I don't get freezing here. Thanks.