[gepaine]

I live in Carnation, WA (near Seattle) and have had good results cracking open the overhead vents as well as one window. I think this prevents condensation from forming on the inside. I have thought about using moisture absorbing crystals, but wonder how they would work with vents and windows cracked. (With our damp climate, I have to wonder how they would "keep up" with the constant flow of moist air thru the trailer.) On the other hand, if I were to close the vents and windows, I would definitely use the crystals due to the increase in condensation.