I have found that the Pet Valu brand of litter also works quite well in my LitterMaid automatic scooper. Although it looks like there isn't enough litter in the LitterMaid to allow a cat or cats the luxury of covering their poops, my cat has never had a problem with this. So I think the shallow look of the litter in a LitterMaid is deceiving, as long as you keep litter in at the prescribed level your cat(s) will be able to cover their wastes quite well.