Quote Originally Posted by krazyaboutkatz View Post
1) Make an appointment with your vet to rule out a medical problem like a Urinary Tract Infection (URI).

2) Like Karen said, buy an enzyme cleaner to help clean up the pee area so he won't want to go there again. I've been using Simple Solution which you can buy at most pet stores.

3) Make sure that his litter box is very clean and you may also need to try an unscented litter. I'd recommend Cat Attract by Dr. Elsey which will help cats to start using their litter boxes again. It also comes with a booklet inside that tells you more about solving litter box problems.

4) You can also try buying some Feliway/Comfort Zone in a spray and after you clean up the area with an enzyme solution then spray it with Feliway to help prevent him from wanting to pee here again. You can also buy the plugins to help keep him calm and will hopefully prevent this problem 24/7.

5) If he only has one litter box then please buy him at least 1-2 more. The rule of thumb is to have at least one more litter box than you do cats.

6) I'm assuming that he's already neutered but if he isn't then you need to get him fixed asap.

I know that this is frustrating but hopefully some if not all of these things mentioned above will help you to solve his problem. Good luck.
She suggested everything that I was going to say so the only thing that I can add is another enzyme cleaner you can try is Urine Gone. You can buy it even in grocery stores here in Ohio. Be sure when you clean the area to totally saturate it w/Urine Gone, scrub it, then clean it again. You want to get the ammonia smell out, not put more in.

Also, even though he's male, sometimes they'll squat to pee when they have a medical problem. If it's vertical spraying, it's usually behavioral, at least w/my cats. That may not be the case w/yours. So, to be on the safe side, be sure to get your kitty checked by your vet. Let us know how things turn out.