What to do with Bitty

Okay, I'll just be frank. Bitty was suppose to die almost 18 months ago. But she lives. She seems fairly normal. She has a good appetite, is still social, cuddly and snuggly (okay, only with me) and "hangs out" with the family. She is still on pregnazone (SP?) and if I never told you, you wouldn't know she was 13 yrs old and got some form of leukemia.

So what's the problem? She has been occasionally peeing OUTSIDE of her cat box for the last 8 months. Its sparadic. There's no rhyme or reason. And we've done all the things the vet suggests ---- making sure the cat box is clean. Getting more than one cat box --- yeah, she actually has FOUR to chose from. And its not like she doesn't use them, she just likes to go elsewhere in the house too.

We have now confined her to the storage room where her cat boxes are because we don't trust her not to pee somewhere else in the house. What kind of quality of life can this be? Yes, she has a nice warm bed and the room is large enough, but I can't stand the thought of locking her up in there until she dies ---- which was as I mentioned earlier was suppose to be 18 months ago.

I don't want to put her down because I can't emotionally handle making that decision. She isn't acting "sick" -- she's just destroying my carpet with her pee and the vet doesn't have any answers.

How do I try and give her away? Danny has suggested finding her a home with someone who has a "farm" where she can live outside, but I think she'd get in some sort of accident.

I have spent A LOT of cash on this cat in the past 13 years. I'm not interested in replacing my carpet because of her.

The SPCA is very strict about taking in animals you want to give up. They must be "adoptable" blah blah blah. And how do I say, "Yeah, she is 13 and might live for another couple of years but was suppose to die like 18 months ago...." ????

ANY SUGGESTIONS???