Some of the public campgrounds we stayed at have dump/water fill ups but others did not. The Yukon govt campground we stayed at had no amenities at all but then there is no electric service in that area. Denali Natl Park has one if the nicest dump stations/water fill areas that I have ever seen. We stayed at a wide variety of campground types in our trip last summer. It you want full hook ups, you are going to be crammed in next to your neighbor with slides just about touching. We chose campgrounds that usually only had electric or were dry camping and only once did we have to hook up and dump tanks/fill water and reset up. We never used a bathhouse, showered daily, and washed dishes and we were able to stay in places for a week without needing more water. Our limitation is not holding tank size but fresh water. We have twice the amount of holding tank to fresh water capacity.