I was talking about the actual litter...ie: clumping, pine, etc.
It could make a difference:)

Cheers,
Cathy

Hi there! I'm a professional pet sitter and wish I could offer you more advice.
Have you tried different kinds of litters...there are many different types out there including a pine pellet one which is awesome...maybe he doesn't like the kind that you are using anymore.
Has the vet tested him for diabetes? It is VERY common in cats and could be part of the problem.
Peeing in strange places is quite common for older cats...it's yucky but you can't help but love them anyway:)
No who can tell me how to get my Great Dane to stop hogging the couch??? LOL!!!

Cheers all!
Cathy