Marty
How hard was this to replace. Does anyone else have any thoughts. I am at BCS in Bend and they quoted me almost $1200 to replace them. They said that you have to remove the water tanks to get the new hoses in. They leave the old ones in place.
I had this same problem in my 2000 Patriot Thunder a few months ago and posted on it. It cost me ~$1000 to have the hoses replaced. We also left the old ones in place and flushed them clean. We were able to run the new hoses through the "box" that contains the gray and black tanks without removing them. We used 6000 psi hose.
You are correct that the reservoir in the rear is the one involved; it is also the reservoir for the leveling jacks. As for bleeding the air, as far as I can tell the slide hydraulics are not self-purging so we still have a little air in the line. It doesn't really affect the operation so I'm not too troubled by it. I gather it is necessary to manually bleed the system at the piston to fully purge the line; I'll get to it eventually.
I hope you didn't get too much hydraulic fluid in your storage compartments from the leak; we lost a few things and I'm probably going to have to replace the carpeting eventually.