We don't typically fill our water tank in the pup because we camp in state parks with hookups. However, we'll be trekking out in west Texas where hookups are fewer and farther between this summer. I'd rather not add the weight for towing all across Texas in the peak of summer. Our first campground stop has a community water spigot. Would it be acceptable to hook up a hose and fill the tank from the community water spigot to save on gas mileage and put less strain on my TV?