Can I keep sand on the floor of my coop in winter or will that be too cold on chicken tootsies? Wisconsin winters can get nasty cold - got plenty of roost space for all the girls, just concerned about the floor (there's concrete under the sand now.) I really like the sand - easy to clean and no smell. While I'm at it - what do you do to keep water from freezing?? I have electricity in the coop but no running water and currently use a 3 or 7 gallon plastic waterer. Just trying to plan ahead while I'm waiting for the teasers to give up some eggs!