I ha ve sand in the coop and run and love it. I just scooped the sand over the grass and if some stuck through no big deal because the chickens like to eat it. It didn't last very long. We have had some major rains this spring and mine has drained fine. I just rake it to help it dry out. The kids love to scoop the poop and rake the sand. I don't know what I'd do without the sand in the coop. It takes 5 min to clean in the morning and I don't have any smell. Good luck!!