Originally Posted by cberlanga
The valves are under the bed and yes you have to remove some screws from the plywood cover. I have done it. Not convenient but doable.
Yes! I did manage to locate it thanks. I even reached out to the Coachmen customer support team and they didn't know. I had to send them pictures so maybe next time they have an idea.
Good news was that the access area is toward the headboard, so I didn't have to take out all the screws for the entire top of the bed. Just the part near the headboard.
In the process of doing this however, I noticed a very poor quality build design in the bedframe. And I went ahead and fixed that while I was in there. This is the main weight-bearing crossbeam. It was held in place by nothing more than those staples shot in from the top! ...of course, the staples gave way and the plywood was bowing and resting on the top of my water tank where the PVC and elbow connectors are attached. So my weight was basically being supported by my freshwater tank PVC piping and connectors!
Really surprised it was assembled this poorly! I fixed it by installing just 2 additional 15" 2x2 wood frame pieces and then I screwed the weight-bearing crossbeam into those. I mean what did Coachman/FR really save here in construction costs, we're talking like 6 screws and a couple more frame pieces. I think this fix cost me less than $5 total, and anyone with this model that doesn't do the same will likely bust their fresh water PVC connections if they ever decide to actually lay on their master bed!