So I have been wondering if I could make my chickens a pond to drink from? I would like to be prepared if we lose electric! I would have it be very very shallow on the edges almost like a puddle and have the center be deep 8'+ so it wouldn't all freeze over winter. My husband suggested burying and stacking 55 gallon drums and putting a grate over top so nothing would drown. Any thoughts on if this would work?