Butch, I'd be interested in purchasing a piece of your cedar breather mattress vent. I have the same problem with mine getting wet underneath. I also had the same issue in my AF when I lived in it through the winter. I use two 1x4 boards as long as the mattress. In the morning I place these boards about 1/3 of the way from each side of the mattress and turn the boards on end lifting the mattress off the floor and providing airflow underneath. It's a pain every morning but it has to be done. I've wanted to try that hypervent stuff but the price has scared me away too.
btggraphix, I just unscrewed the outer most tanks short hose and screwed in a longer pre-made hose. The longest hose they had didn't reach down as far as I wanted when the TC was mounted on the truck so I bought another extension to get it closer to the ground. When I want to use the factory tanks I can still hook up to both of them without having to change hoses back and forth. I just wind the extra slack around the handle portion of the cylinder and shut the door.
Removed short hose

Connection

