I don't think I'd put the cat litter used in the coop in the compost or the garden. I'm sure there are many types but all most likely have chemicals and clay that you don't want in your garden.
That is why I asked. How long is a "Long time". Seems 12 bags would last a lifetime!
No question the large bag is MUCH more cost effective. I found that out with chicken feed. First bag for 2 day old chicks - 5# that lasted 2 weeks. Second 5# bag lasted 1 week. 3rd bag 25# and less than twice...
Do you get sand along with the chicken poo? I would be wary of putting too much sand in the compost simply because over time it will end up changing the composition of your soil.
Really? On line the only thing they show is 1.5 pounds for $9. Described as an insect killer. Not sure I would trust that it is "food grade". I wouldn't trust the pool DE to be food grade either.
Now, mind you, I don't know what make Diatomaceous Earth "food grade" but I would presume whatever...