Our chickens free range. They usually hang around the house including the pool area and eat bugs and weeds (and I think frogs bc we have found a couple frog carcasses *gag*). Today we came home and they were in the pool area (its a wood fence and they either go thru the femce slats or over the fence). Hubby went to shoo them and they were DRINKING outta the pool! Their coop was maybe 20 feet away w a clean water supply. So they arent out of water. (We use a bucket that drained to a pvc pipe w nipples they push up to drink. The bucket is closed so it doesnt get contaminated w their food, dirt, poo. And its hooked up to a hose from the pumphouse so it keeps the water level full). Its a chlorine pool. Can this hurt them??? I figure if city backyard chickens can drink tapwater which is chlorinated, then they should be ok. We didnt add chlorine todat or shock it, so it wasnt over chlorinated. Just curious.