We have always used builders sand in our coop and run. We would never use anything else. Clean everyday with a kitty litter scoop and mini rake. We do change the sand a couple times a year. NEVER smells and we never have poop sitting there since we do our 20min. clean everyday. Highly recommend!I honestly think I spend less time cleaning poop than I ever have before. It takes me about 1-2 minutes, honestly no more than that, to scoop and remove the poop from the entire coop and I do it daily. No more turning, ever! I don't leave the water in the coop to avoid spills as coffee will mold.