My Dickey has been running non-stop for since I got it a few months ago. I'm finally at the end of a hatch without new eggs in or waiting to go in so I have a chance to clean it now. It has a lot of green mold growing on the walls that needs to be cleaned up. What do you guys suggest I use to clean it & how to you get to the back walls & corners to clean them? Do I need to removed the turner racks??