LOVE KOOP CLEAN and not affiliatd in any way. I first saw it on The Chicken Chick's Blog and then in a few magazines. I mentioned it to my not so local feed store and they got it in for me. I mentioned it at a chicken workshop sponsored by the feed store and a bunch of people went over and got it. Now the stock boy told me they can't keep it in stock. We pay 20 at Mike's Feed Farm in Rivervale, NJ. When I open a bag, I go get one or two more so I don't go all the way out there and get disappointed.
I love it because my coop never has an off smell. One of my hens died from what the state lab said was Marek's, but she called me when she got my hen and asked what I bathed her with. Water and my hand on her poopy butt when she couldn't stand. No soap or perfume as I am highly allergic to factory made smells. We figured out that it was the fresh smell of the straw in the Koop Clean. I also use sand in the run, so her feet were very clean. She liked the sand in the run.
Best thing about Koop Clean is that it is chopped straw. That means on Wednesday, I can take out the clumps and damp and just refresh. It is compressed and chopped, so that bale is equal to at least two bales of regular straw and you fluff it. On Sunday, I do a full clean out of the large Snap Lock Coop, which only houses 6, so you get an idea of the size. (not large enough)
The PDZ is what they put under the straw in horse stalls to combat the urine smell. There has not been a smell in the coop since I started with Koop Clean. I also got a pail of plain PDZ and after a heavy rain, the sand can get a little odor. A handfull of PDZ scattered here and there and raked in and odor is gone. The stuff is amazing.