I have an ammonia smell in the coop...I toss the wood shaves, they don't seem wet and last week I replaced half of them...I have been sprinkling on Sweet PDZ, should I also be using DE? Does DE keep things dry or just bug free? I'm heading away for the next 6 days and a friend is staying at our house and I want to come back to live chickens!!! If I am doing it right, maybe my "sprinkles" are wrong, about how much for a 6' x 4' coop, about 6" deep and how often? As always thankyou!