..Sure you can stop by the water source, hook up your hose and fill up your tank.
Then move the short ways to your site.
Sometimes, you might have enough hose to reach the spigot to fill up.
Just that these people I've run into a couple of time never disconnected, which made it so no one else could get water.
I personally never drink the water from either the city water or the fresh water tank - just prefer bottled water. (for Abby, too)
I'll use trailer water to wash up and do dishes.
ON EDIT: I'd be puttin' that 300# husband on a diet and exercise program!!
..