TRACKRIG - I am POPUP tent camper. I carry two 7-gallon AQUA-tainers which I have cut a hole in the cap to lalow me to push my sink drain hose into the container. When the sink stops draining I know the container is full so I switch it to the empty contain sitting next to it.
Then I tote the full container to the local bath house and pour it down their pot.
You can see my catch containers in this photo...
I use one of those folding wheeled totes like this to haul off the 7-gallon containers and bring back fresh water to keep my fresh water tank re-filled.
Its a privilege to me to be able to follow the camp ground rules.
I have also noticed the GREY WATER drain areas showing up in the camp roads. That is pretty neat. Cloudland Canyon at Trenton GA has those usually two per camping block.
Roy Ken
