Thanks guys. We are familiar with the tubing used and all. The thing is that the leak is under the RV, near the hot water boiler. You need to crawl under the thing to get to it. My dad saw a guy almost get crushed to death when he was under one and an air bag blew. The whole thing sank 4 or 5 inches in a millisecond and scared the shit out of the mechanic. He was lucky he was a skinny dude. He barely got out.

We ain't climbing under unless it's an emergency.