I had to dump the So Phresh grass seed litter. I didn’t like the smell of the fragrance free one, then my cat wouldn’t do his business since yesterday afternoon. He went into the box a few times yesterday and didn’t go. I heard him twice during the night go into the box and was expecting stuff in there in the morning, nothing! I remembered I had a 1/2 of bag of non clumping litter in the garage I keep in case of oil spills. I poured that on top of the grass seed litter and put him in it. He sniffed a little and then finally went 1 and 2. Thank god, the little dude was holding it in since yesterday. I don’t know if it was the smell or texture he didn’t like? Back to clumping clay litter for him.