When we got our TT new, the factory had installed the regulator facing the rear so you couldn't see what tank was being used. Wan't until I flipped it around I discovered the rubber hose was too short to reach the bulkhead fitting at the front of the frame. I guess the factory was too lazy to figure it out.
At first I thought of getting a longer hose but were expensive. In the end, all I had to do was move the propane tank tray rearward a couple of inches. That was something the factory could have easily done at no extra cost to anyone. Typical... :M