A year ago I was riding way in the back of a SUV that was towing a
Casita 17, to try to locate a noise that the owner thought was related to towing the trailer. So I was in a position to see the hard cover that set over the two 20 lb
propane tanks. At 50 mph that cover was moving around a lot. I was surprised at how much it was moving. Turned out it was not the source of the noise, but taught me that it is a good idea to secure the cover, which I had already done on our
Casita because of rub mark on the
fiberglass.