Originally Posted by Chatooga11
Very interesting, Turtle. I have had to replace the gray tank and have the entire Interstate replumbed because of a gray water leak costing me well over $2000 and an entire lost summer with the van sitting at Camping World. I do believe that Camping World took advantage of the situation to optimize their profit, however. It seems to be solid now, except for a dump valve issue which is another story.
This is a back-fill entry to this thread which I only discovered yesterday (Feb 2016) while searching the current re-sale market for T1N Interstates. The thread was launched shortly before I joined Air Forums in late 2014 and I hadn't seen it before yesterday.
Chatooga, I'm not sure if you still own your Interstate, but I think that $2,000 was probably a fair market price for the repairs that you describe. My husband and I had to DIY that same complete re-plumbing of both gray and partial black water systems on our 2007 Interstate. It was a difficult, time-consuming job. Many Interstate owners of that model year, and perhaps other model years, either had to pay for similar repairs, or if they were lucky, they had them done before their warranties ran out. Complete fracturing of the gray water plumbing, to the point where the gray tank physically broke free, was a well-known problem of the time.
I have a blog category devoted to the repairs and replacements that we had to make after we bought our low-mileage 2007 Interstate (about 26,000 miles at purchase). If this thread really is pulling up during prospective buyers' Google searches, then I want those buyers to have access to this information. I don't want them to make the same mistake we did and simply assume that a low-mileage Airstream MH must be good quality by definition, and therefore no expenses should be anticipated.