If you are switching to Pussydo Cat Litter and your Cat is turning its nose up at it - Here is a few suggestions on How to Change.
Sometimes our cats are creatures of habit, famously comfortable doing the same things each & every day - thus making the cats a little unsure of change!
Is your Cat unsure if he's allowed to wee on this new product??
As a creature of routine, the best way to introduce a new litter is by mixing it with the old or sprinkling a bit ontop until the new litter is accepted.