My cat started peeing everywhere and now she is an outdoor cat. The only reason I felt comfortable putting her outdoors is because she is too old and can't jump over the walls, so she stays in our back yard.
Other than that until the UTI heals up, I don't know how to stop the peeing. Maybe get a de-pee sanitizer?
I was thinking about the outdoor thing; but we live on such a busy street that I think he would only live for 1 day. He is so sweet in every other way. I have gone as far as to carry him to his litter box every morning and during the day. This just isn't right.