I was trying to ID the supply and return lines going to my generator. My generator is located at the driver's rear of the coach. Those lines are both marked "Larence USA", that was easy to trace. There is another rubber line about the same diameter, but it has no logo or markings. I noticed this line has a "bulge" about every 12 in. I crawled under the coach, but I can't locate the line. It doesn't seem to run to the engine. There are hard plastic air lines, high and low AC lines, and a large amount of wiring. Is there a schematic for all the different lines somewhere? It would seem logical that the line is under pressure since it has soft bulges on the line. Whatever it is, it's going to be a lot of fun to replace. Thanks
Brian