Hi all... I'm new here and a newish PUP owner (6 month owner) with a 2018 Flagstaff 205 PUP. It has a Thetford cassette toilet and I've noticed that it tends to fill up quickly with a child and wife. Anything after day 4 and it's screaming at us. We have only been camping at sites with hookups and/or that have dump stations. I'll usually go every other day so that I don't have to handle a full container of... stuff. We are coming up on a long weekend (Memorial Day) and we will be boon-docking up in the AZ mountains (Coconino). I know for a fact that the cassette will not hold 5 days of our stuff, which puts me into a situation. I have looked through all the requirements and limits and it's a little grey on the black water situation (excuse my pun). Wash water can be dumped straight on the ground (water and soap- like showers). Grey water with food particles are a no unless buried. And then I've read, and I quote: "Dispose of human waste in catholes, 6-8" deep, 200 feet from water, trails & camp" from the USDA website. Based off this, I would assume if I dig a long enough hole, deep enough I would be able to dump black water as long as I follow all other requirements. Again, this isn't a 25gallon black water tank. It'll be a 5 gallon cassette. Any direction or experience would be greatly appreciated. And if I missed the post somewhere on the forum I apologize.