Sorry, I know there are a lot of threads on here about PDZ and/or sand in the coop, but I've spent a lot of time looking and can't find an answer to my question. SO, here goes: If you use one and/or the other, how do you use it? PDZ alone, or mixed with sand? If mixed with sand, what's the ratio you use? (this is the question I can't find an answer to) Do you use it on a poop board and the floor? Or, just one or the other? I don't believe I'll put shavings or straw on top of it...just straw in the nest boxes with a stop in front so it won't (easily) get kicked out onto the floor. (plus, my nest boxes will be short enough that they can't stand all the way up, so they may not do much scratching in there, anyway) Thanks for your input!