I don't have water in the coop at all, only food and by the looks of it, space is a premium for you. there isn't a time that my chickens don't go outside. rain (we get it by the bucket load) wind, sleet, or snow they don't stay in the coop. I can't imagine a scenario that my chooks stay in their coop. they are out of the coop at dawn and they don't drink at night. so far no complaints.