I don't have a pond, just a couple of kiddie pools. I just tump them over every day and refill with the hose. Very easy, even in the summer! I do try to put them in the shade, so the water doesn't get too hot. They love them, cleaning off in them, just hanging around, and mating in them like crazy. At least they are not very deep so I don't have to worry so much about the drakes accidentally drowning one of my ducks during their enthusiastic mating sessions.
If you want to see something scary, search "ballistic penis" on the web. It's all about duck mating, but be warned it could scar you for life!
If you want to see something scary, search "ballistic penis" on the web. It's all about duck mating, but be warned it could scar you for life!