Please keep in mind that there are two very different types of toilets in back-country campgrounds.
One is the "pit toilet". This is pretty much identical to the old "outhouse" some of us had when we were kids: A hole in the ground with a little house on top of it. When the hole gets full to a certain point, the house is moved, the hole filled in, and a new hole dug to put the house over. In these, the liquids percolate through the soil, and the solids are left in the hole.
The other is the "vault toilet". In this case, the hole has a solid concrete or fiberglas vault in it, with a pretty much permanent house built above it. The vault holds everything, and must be pumped out regularly, usually on a schedule not on an "as needed" basis.
Dumping RV tanks in either toilet is almost always against the rules, and may result in a ticket being issued, and/or eviction from the campground.
The (in)famous "blue tote" may seem like a good idea, but around here the nearest dump station can be anywhere from 10 to 40 miles from the campground. That is why I no longer have one.
Some areas may allow draining the grey water slowly into the brush next to the campsite. Other areas will issue a ticket and/or eviction notice for doing it.
As always, read the instructions when checking in to find out what is legal and not legal. Then comply with the instructions.
Good luck
