Actual weights are good to know. It would be interesting to see some actual Sprinter and Promaster weights. Just add them to this topic:
http://www.classbforum.com/phpBB2/vi...php?f=9&t=1783
Update from Winnebago.
The fresh water tank capacity is 25 gal. This does not include the water in the Combi water heater/furnace.
So 28 gal if calculating for weight or 25 gal if calculating for useable capacity.
Confirmed: The bathroom sink drains into the black tank.
Confirmed: The shower drains to the gray tank via gravity.