I was thinking of re-plumbing my van system. I have everything plumbed with garden hose, and was thinkinging that I might use solid plastic plumbing pipe instead. What does anyone else use that doesn't use garden hose? I need to use something that I can get appropriate fittings for of course. The water goes from the tank via a filter to the pump, then feeds into a couple of di vessels, then to my gas water heater, then the hose reel.