Okay, it seems you have a pretty good knowledge about cats and have already considered some good ideas. Here's a couple more:
Your vet is probably going to check for parasites and infections and all of that, that is the very first step.
If the vet finds no medical problem with your cat, you need to wash and steam clean all of the poop and pee places with an enzyme cleaner like Natures Miracle, you can buy it at a pet store. Also spray the sofa with feliway to help deter the cat from using that spot. One thing to consider is that cat's won't use a dirty box, so you need to clean it every day. You said that odor is an issue becuase of small quarters, she may find the odor offensive as well (cat's can smell things that humans cant').
Cat's don't punish their owners by urinating or deficating. There is usually a medical or simple solution behind it. I would actually suggest placing a litter pan in the bathtub or shower unit, and keeping the kitten locked in the bathroom. Not as convenient (but more convenient than what you're going through now) and you and your husband can remove it when you need to use the shower or bath. This way, you won't be "punishing" you older cat. But you won't be punishing the kitten either, you are correcting a problem. Keep it this way for several weeks to get her back in the habbit of using the box, and make sure that there is no odor left in the sofa. Also, have you changed the type of litter when your cat started doing this? If so, change it back.
Good luck!

Destany

[ Reply To This Message ] [ Subscribe to this Thread ] [ Show Entire Thread ]