I am still waiting for my KC's to arrive and will be new to ducks as well. I expect that they are going to be much messier than chicks as well. I plan to keep mine in a huge rubbermaid tub as well, however I plan to use pine shavings for the bedding. I would think if you used something like that rather than paper you wouldn't have to change the brooder nearly as often? Also you may want to try a waterer that the ducks cant tip over or make a mess of as easily, like the one pictured in Kada's picture above. Thats a neat idea. I've been picking up a lot of ideas from other's posts which is I jumped on this thread.