install plumbing

I agree with motox. Go to Home Depot and ask them lots of questions. Then go to Ace Hardware and ask them more questions. Of course, you want to talk to the guy that's done it before and used the products he's recommending. Then you should have an idea about what you think will work.

Take lots of pictures of the "problem" and take those with you when you talk to the guys at the hardware store. Many times I've walked into the store with tens of pictures on my crappy little cell phone camera that have helped immeasurably to explain a situation — especially one where I don't know the correct terminology.