I have three bags of unopened black mulch. I wonder what would happen if I was to put that down and then put sand over it? Do you think that would help with the mess? It's not a huge area, just where I empty their water bowls and refill them regularly.Have you ever had a case of Bumble foot? That is my biggest fear with anything but the sand I use. I have no one that will hold the duck while I try to treat it and mine do not like to be held and are fiesty when I do have to catch them to clip them.