Campgrounds without sewer hook up

We camp at State Parks without Water/Sewer connections all the time. We take our large rolling hose reel for filling up the water and a Portable Holding tank to empty. I just made sure that the holding tank was big enough to empty the entire Gray tank into and also that it was towable by hitch.

We have it covered for boondocking as well with one of those Portable 45g water pouches + pump. This way we can camp in Colorado at the national park cg's without having to go into town to take a shower.