Originally Posted by cekkk+
Actually, other factors come into play regarding weight of water. For instance, obviously, Crabman's water weighed 8# because it was boiling. On the other hand, up here at 9000', air is lighter, ergo our H1.5O only weighs 6.733#/gal.
Jayco says a full tank of water on my trailer weighs 490 lbs. My trailer holds 59 gallons including the HW tank. 8.3 lbs per gallon. I`m sure it does change with elevation, etc. I think the main point is water is considered part of the Cargo carrying capacity. And some of the "lite weight" trailers actually don`t weigh that much less then the others, but have a much smaller CCC. One case in point is the Jayfeather 28R, weighs 5200 lbs, GVWR 6500. The 28bhs with the same floorplan weighs only around 200 lbs more but has a GVWR of 7500 lbs, so it can carry about 800 lbs more cargo.