while there are some flushable litters most municipalities don’t want you to flush it not because of the litter… but because of bacteria and other differences between cat poop and human poop
i imagine it’s hard to tune waste processing, and most places want pet waste in the trash
( i wouldn’t think flushing newspaper is good either. tp is specially made to breakdown quickly. even paper towels can gum up the works - your own and the processing facility. there were lots of problems during the tp shortage because of paper towel use )
