So we have sand in our run - don't know which kind because my husband picked some up from a guy on Craigslist who was trying to turn his background into a beach and failed miserably - guess the cats were leaving deposits for him! I'm assuming it's a playground sand which I know isn't ideal. The hens have been on it for 3 months now. So anyway, I was watering our backyard there was a 'whoopsie' and I came out to find standing water in the chicken run - eventually it dried but the left side is really compacted. I took a pitchfork to it and worked it up into some clumps. Will this even back out if the chickens stratch around in it? I know I'll need to replace it eventually with something like a mason sand... thanks for the response!