I just switched over to horse pellets and sprinkle a little PDZ (anyplace that has horse supplies should have it) and DE in it. I really like the pellets- I wet them down in a bin & wait to let them fluff up - then later in the day I scoop and add to the places that need it. If they scratch it out into the grass I don't need to clean it up really - just let the grass grow again and the pellets-turned-sawdust just disappear in new grassTry to get some Sweet PDZ. I know it may not be available everywhere, but places like TSC, should carry it. I use it as base layer in my coop. Then I place hay. PDZ is granular like course sand. It would be easy to sift thru with a kitty scooper.
PDZ neutralizes ammonia.