My Popup has only been on FHU when I was host and had to use that spot. But for health reasons wife might need the AC at anytime. If no power is available, may have the pickup running for who knows how long.
But I do not like to have water on site. We have a fresh water tank, but have to carry the waste. With the slow flow out of tank, we can go 3-4 days before we fill the waste tanks. If the hose is right there, I might need to switch jugs if she decides to do dishes.
The 2 months as host I used a hose for drain and another for water to the outside sink. Had one of the plastic sun heated Camp Showers hanging to heat dish water. For water inside just like normal, and dump the jug once a week or so.