I just learned in another discussion that PVC feeders may not be a safe option for roosters. Not all roosters, but apparently quite a few do experience problems from their wattles and combs getting injured. As long as I can confirm that PVC pipes are food grade and BPA free (not clear on this yet), I'm considering a modified feeder to accommodate my rooster's large wattle and comb. The design I'm leaning toward is a pipe that hovers an inch or so above a non-PVC tray I'll mount on a wall and that's large enough to allow several inches of space around the pipe. The tray will be a food grade container, something akin to a lasagne dish with the PVC pipe hovering above it. But deeper and not as big. Do you have any suggestions, though, on the design? Did you do anything to accommodate your rooster to make it safe?