I was completely sold on the idea of sand until I used it in my brooder. It kicks up a ton of dust. We *sometimes* can get a drought here in the mid-Atlantic, and I'm not thrilled with the idea of all that dust stirred up all the time. What else do people use in their runs? Mine will be about 70 sq ft with 3-4 standard birds. I'd love something easy to maintain that keeps down pests and odor. Any suggestions?