OK, my fly problem is getting out of hand. I have done several searches here in desperation. I saw where one guy/gal built a trough and put Sweet PDZ in it. He placed this trough under his roosting poles and his problem went away. He then treats it as a litter box and scoops periodically. So, here is my question...I have a coop where the hen house is elevated over the run. The hen house itself is roughly 4' x 4' give or take. Currently I am using pine shavings as bedding in the hen house (deep litter), but was wondering about Sweet PDZ. Could I just replace my pine shavings with Sweet PDZ? I know it could be costly up front, but if it works it would definitely be worth it. Is anyone doing this? Would it be safe to use in that kind of quantity? Thanks in advance.