Do I have a pyramid made of poop? A question for dry campers

Just retruned from our annual 2 week dry camp fishing trip. We have never had any pyramid issues in 15 years of doing this trip. We use enough water to flush but over the 2 weeks we never have filled the tank. Just before heading to the dump station I dump a 5 gallon bucket of water down the toilet. That and the trip to the station mixes up the tank contents well and it all flushes out fine.