So this is an old thread, but several people had wanted to know the outcome. I was on RV.net for some other stuff today and realized that I had never posted a follow-up. Thanks to all of you who helped with the other 2 issues I had, by the way.
I got the rot doctor and all of that, and was ready to start following their instructions and injecting it into the wood. As I got further into it I realized that the rot went deeper then I initially realized. It had started to rot the beam that was directly under the slide, parallel to the one I had been working on. I couldn't see that until I cut more of the flooring away.
That concerned me since that beam was offering support to the slide. I admitted to myself that I was in over my head and took it to the dealer. After talking to a couple of managers they cut us a really good deal and did the work at cost. Their service manager, who we ended up becoming friends with over the last few months, felt pretty bad that they had sold the unit to us in that condition. The whole service department bent over backwards to fix that and some other issues, to the point where they covered over $600 in labor to replace one of our tanks.
Anyway, they were able to save us some money by not removing the slide altogether, but they did have to raise it about 4 inches and put shims along both the studs that were rotted. It went back under the bunkroom and slide so it took them a couple of days.
At the end of the day it cost us $1100 to fix all of that and the rot under our door.
My wife and I do truly feel that the dealer treated us right and that we couldn't have repaired this on our own, but we also learned our lesson: NEVER buy an RV if it has ANY odor in it at all!!! We had persuaded ourselves that the musty odor we smelled was just because it hadn't been used in a while, but that obviously wasn't the case.
