About the duck water - I use the black rubber feed tubs like you give horses grain in and pop the ice out morning and afternoon. Carry a bucket of warm water out to refill and take the dish in on occasion to scrub it out good. The coop is way dryer. The water dish is big enough for one duck at a time to get in and flap wings to bathe. I have muscovies and they are polite enough to make sure everyone gets a good drink before they take turns bathing. Their food is in the coop so it doesn't get wet and turn to mush, but nobody has choked so far. They get pellets so there isn't as much waste.