Hi, My wife and I are new tio motorhoming. We have just taken delivery of a Winniebago Access 31c. It's very nice but is bigger than I thought to drive. The thing that is concerning me at present is the water supply. We stayed overnight when we picked it up. We appeared to use 3/4 of the 40 gallon tank in one night. If we have to refill and dump the waste every day this will be tedious having to drive to the services from a pitch every day. Are we doing anything wrong and is it worth investing in a portable waste and water barrel.