So I spent an entire afternoon at the dealership. Overall, the fit and finish well exceeded my expectation. I thought I would find a lot list of problems but I did not. Here are the issues that I saw:
1. The Flojet on-demand pump made a huge racket. Turning the shower caused the whole side of van to vibrate. Popped the access panel at floor level by the heater and the problem was obvious. It was not the pump! But rather, a length of Pex pipe that went to an elbow. The pipe was cut just a hair too long causing it to touch a metal part of the chassis. That in turn amplified the sound ten fold.
Was disappointed to see that they used the start-stop pump rather than the proportional one. I will probably replace it as I did on my boat 15 years ago.
2. The water heater is a disaster from fit and finish point of view. It is an ugly beast with the most flimsy metal lid on it. Any time you attempted to open it, it would scrape of the paint on the body of the van! Was doing the same on the one inside the showroom.
They suggested upgrading to a Truma heater but unfortunately the large bezel on these units would not fit in the same cut out of the Interstate. There unit itself slides into the same space but the plastic flange is 1 to 2 inches and there is no clearance in the body to allow it. THey are investigating a way to make this work. If anyone knows a solution here, would appreciate hearing about it.
3. The water pressure in the sink faucet was very low. When you first started it, you got nice flow but it would go to a trickle with the pump cycling on and off instead of increasing run time to keep up with pressure.
4. If you closed the main AC vent that is pushing air down, the left side of the AC would make a gurgling sound. Nothing major but a bit annoying now that I know about it.
I think that was it so I went ahead and signed the paperwork
. Will take delivery Monday of next week. They will be doing their own inspection and make repairs/fixes.
Thanks to everyone's ideas and suggestion. Was good to be prepared to find nothing regardless