I have a 5X8 coop and I have used the deep pine shaving bedding method. I have on a couple of occasions sprinkled DE and Seven5% powder but as I am new to this, I really don't know the correct amount to mix with the shavings. Does anyone have an idea how much approx. per square foot and how often. I am so afraid of overdoing it. It is the food quality DE. I appreciate any ideas you can give me. Thanks in advance. Also, if it makes any difference, they are out side in a large pen all day at this time of year.