My wife and I usually walk around the campground in the evening so we would take a couple of gallon jugs with us and top them off during our walk. We never ran out that way.
We would keep them in our truck and if we left the campground we could fill up as we went by the spigot.
It was kind of a pain only filling 1 gallon at a time, but it wasn't heavy!
2016 Puma 30RLIS
2011 Catalina 19RD - totalled by hail