I have 5 chickens who LOVE to pooh ALL over my cement porch!! The solid stuff is easy to clean, the runny, not so easy (I'm not sure if runny poop is a sign of illness, or not?) But I cant seem to rid the stains from the cement, ESPECIALLY when my mullberry tree starts to produce, it's a terrible mess. Does anybody have any ideas, or miracle concoctions to make my once lovely porch clean again??