We have never left home without some fresh water. We have a Well, because we live in the country. VERY GOOD WATER. No iron, sulfur etc. We take the fresh water for making coffee, Iced tea etc. But be careful, if you are attached to the city water at a campground already, and turn on the pup, can create too much pressure and blow a pipe fitting, etc.. Even the Dealer told me this. So when I want our water, I disconnect from the campground water long enough to pump a few gallons or so of our water, turn off the pump, and re-connect to campgrounds system. My friend bought a new High Wall, and I had aleady warned him about this, he forgot, and pump[ed from the tank, and blew a pipe, luckily, it wan under his camper or his weekend would have been over.