Set up outdoor cat litter area on currently stone floor in backyard?
What I am building, but the floor is stone to start with
What litter mix and how deep to set up outdoor cat litter area of 6x3, on top of currently stone flooring? Would 1 foot deep with mix of dirt/pea gravels enough for the urine to sink? Would it be better to have an absorbent layer in the dirt? What would happen when it rains (plan a simple roof top for the cat house enclosure of 6 by 3, 6 feet tall).
The goal is no need to scoop every day, and no smells. But will bleach and flush down the area well at least 2x a year.
From watching various videos, there of course have to be treated wood panels around it so the litter can be held inside first, but I really am not sure how deep that needs to be and what litter? A mix of non-crumbing litter + pea gravels + dirt?
Thanks for any insights.