Brad777 wrote:
Thank you all for the info. I will look for a vent line coming from the top of the tank to a vapor recovery canister. Being that my Bounder is a 1995 Ford chassis I wonder if it would have a vapor recovery unit. I can tell you all that there is no leaks of gas under the rig and 3/4 of a gallon is no big deal except for it is 3/4 of a gallon every week ! It adds up !
My coach is a 1976 and it had two vapor recovery canisters (due to size of tank) so I can guarentee that yours has at least one and possibly two. They have been required for a long, long time.
Stop overfilling the tank and the gas will stop disappearing and stop "adding up".
