Try Simple Solution, sold in pet stores.

My cat was stressed out for awhile (and also sick) and urinated on my carpet and the Simple Solution worked better than anything else in terms of removing the smell. Buy the big gallon size and literally dump it on your carpet. Really saturate it into the pad, and just let it dry. Don't blot it, rub it or anything. Just let it dry. It will take a few days, but it works.

Go to a pet store and buy a spray bottle of "Nature's Miracle". Follow the directions on the bottle. This stuff really works!

Nature's miracle

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Here is a link that might be useful: Nature's Miracle

You said you pulled the carpet and pad. Is the smell in those or is it in the floor beneath? If it's a concrete floor, try a strong bleach/water solution.

Natures Miracle and Simple Solution basically do the same thing. I just prefer the Simple Solution because it smells better.

if worse comes to worse you might need to seal the floor...that's what we did...used that liquid floor leveler...then had the carpet installed...

Thanks everybody for replying...unfortuneately, I have tried all of these methods- and more. I replaced the wall to wall carpet and the padding the very first thing. At that time I also sealed the floor, with (I think the paint/sealer product started with a 'Z'- ZAP?). Anyway, it didn't work. The Natures Miracle/Simple Solution didn't even touch it! I have used several other enzyme products also. I used a black light, and it only showed a very small area in the corner. I have gotten down on the floor, and smelled the new carpet- it hasn't absorbed the odor. I was excited a several weeks ago, as I used the baking soda/vinager/dish soap/hydrogen peroxide formula- I thought it had worked, then last nite- the smell again. Susan- you did the only thing that I have not done- the concrete leveler. I have some 'Feathercrete', left over from a some tile work that I did. I will try that tomorrow. It is a wood floor, but it it light enough, thin enough that I can use it. I bout this house 10 years ago- the man who built/owned it had had some cats- there was a cat smell by the back door. I actually had to cut out the subfloor, part of the 2x4's studs, replace these before I tiled the floor! I will try the concrete- any other ideas appreciated!

Gee, cat urine, is an aweful smell and SO difficult to get rid of.

My DD cat peed on our leather lounge, and we spent years using different things to get the smell out.

I really can't remember what did it in the end, but the smell has gone.

Hope it works out for you. Sorry I can't help.

I use Simple Solution as well. It's even safe around birds and does a wonderful job. I always add Simple Solution, a few drops of grapefruit seed extract and shampoo my carpeting that way. Before that, you could spray the area with white vinegar for a few hours. That should take care of the problem quick. Good luck!

Something else to consider...you said it's in the corner. Do you have molding where the floor and wall meet? Maybe the cat sprayed rather than squatted and saturated the molding and/or wall surface. ??

Like Rita said, it could be in the drywall. May have seeped in from below and wicked up to where the blacklight wouldn't show it. Try applying KILZ and painting over it in that corner.

Also, I know that once I know a cat peed somewhere, I'll smell it there it forever, even though no one else does. I have an active imagination. Does anyone else smell it, or just you?

Good luck, there's nothing worse than cat pee, IMO.

Could it be that the cat peed on some furniture? I once rearranged my entire livingroom trying to find the spot on the carpet our cat peed on, only to find that she had peed on the new sofa!! ARGH. We dumped two gallons (literally) of Nature's Miracle on it and let it dry in the sun during the day. No smell! But it did make me realize that the carpet wasn't the only place she would choose to "go" on.

The only other option would be to rent one of those ozone machines. They use them in apartments after someone has smoked or had pets. You can't be in there for 24 hours I think, but it does work.

Blessings!
Haley

Paint the subfloor with several layers of Kilz paint. That will do the trick. We moved into a house with (unknowingly) tons of pet urine damage under the carpets that had seeped into the subfloor. Kilz really worked.

Get an Enzyme product from a Janitorial Supply Company. The kind that Restoration Companies buy. It Works!!!! Rent a black light so that you can see where the urine is located. Then treat those areas with the enzyme product. The Kilz sounds like a good idea too! Liqui bac is a product that I am familiar with in Canada. It is a Rochester Midland Inc. product and Environmentally safe.

OK! Lattefairy- I have poured tons of vinegar on it- I am thinking that it more than the commercial products. I think I'll pour more. okwriter- I have already replaced the molding, the carpet, the carpet padding, the carpet 'tack' strips that hold the carpet down. I have only 2 pieces of furniture in the room- both put in the room after cat was gone. flamingo- Yes, I know the smell is there, but haven't asked anybody else if they an smell it. I have a very good nose! Monday the realtor comes out- will ask her if she can smell it. I hope you are right, and that it is more me, than the actual smell! hale_bopp- I am very, very rural, nowhere to rent something like that- I will see about buying one from Sears, and having it UPS'd. bearcat- Kilz is the first thing I used- it did a little. mush- Thanks for the idea- I will google the company tonite. 'Liqui-bac'? Thanks for your ideas- I am really hoping to get rid of this! I wonder if it is worse because the cat had such a bad bladder- we spent over $1200 trying to find out why she kept having bladder infections. Found out that her bladder wall was thick, had holes like diverticulitis- could not help her- tried for 4 years. Had to put her down. She is reminding me about her every once in a while....by smell!

What a experience, Hopefully you have found a way to get rid of the smell. Any updates?