Wasn't it? Totally unexpected reaction. Thought sure that they'd take awhile to get used to the idea of running water, this being their first encounter with it, but apparently instinct was the stronger of the two concepts.
If you watch really closely in video #4 one of the quackerettes is near the waterer getting up after being flat on her back, little webbed feet waving in the air. That happened because several of them were so excited that they'd go racing around the pen at full speed, try and take a corner too hard, spin out and lose control. It happened several times, but that's as close as I ever got to catching one on camera. Just to funny!
Sunsinger, the duck formerly known as Lame Duck or LD is doing fine, and laying an egg a day. One day she even gave us two. We plan on starting introductions to the new kids in 4-5 days with her in a cage at first for safety. She seems to be quacking more, and we have high hopes that is because she can hear them.