We do deep litter in our coop. Its working great EXCEPT for the area immediately under the food & water. That keeps getting disgusting and rotten on the bottom. How would you go about fixing this? Putting the food/water in a sand box sort of area to contain the feed and keep them from knocking their water out? We had a drip waterer but it kept leaking so we switched to a different waterer but they scratch stuff up into it and knock it spilling water out.