I would hesitate to use a non-litter as a litter. ANd the chances are it won't do a good job. How many litter boxes are you using now and is your current litter not working well for you? Many people think you should have one box per cat, and with 4 cats I wouldn't use any less than 2 or 3 boxes to control odor.
But, I'm wondering how well it controls odor.
We have 4 cats, and have been using Tidy Cats clumping litter
Great! Don't fix what isn't broken!
There's 2 boxes. One upstairs, amd one down.
The current litter works great. I was just curious.