Also, even though you're scooping every day, little bits of waste slips through the scoop and stays behind so you need to completely dump the dirty litter weekly, wash the box with soap and water and fill it with fresh litter.
The Anangu Kichwa in the Yasuni Forest of Ecuador built these «eco-toilets» after getting tired of hauling water to their government supplied western toilets that just dumpedwaste into a cesspool behind.