Nolan, Be careful who you listen to on this board, #1 You are not a code inspector, so if a system is preforming its function you can NOT call it out for repair. #2 The home owner does NOT have to bring things up to code if it is cosmedic in nature.#3 the pipe used will not clog or smell any more than a dirty lever stopper in a sink. #4 have Jerry prove the pipe can not be used by a home owner or that the manufacture does not approve it for that use. #5 you can NOT predict what might happen to that pipe and how long it will last. Now the P-Trap is a different story.