Cat urine or feces (or anybody's for that matter) is an enzyme-based odor/stain. "Out" sounds like a product worth checking into and I use Natural Touch "Enzyme Odor & Stain Eliminator" - unbelievable what it does.
Out is an excellent product but very expensive. I do a homemade version with food grade 3% hydrogen peroxide and "No Rinse Body Bath" ordered at WalMart pharmacy (less than $6). It makes 16-8oz bottles of solution. How cheap is that! And equally effective.
I have used many of the products and remidies mentioned by others. I have found the best products are manufactured by Out. These products have worked hands down. The only other product I have had luck with is the product called Urine Gone that you use with a black light. I praise both products as the best on the market. Get both products through the mail or from a local retailer for $20 or less. Good Luck>
I finally found a successful product called 'Out! (Pet Stain and Odor Remover)', marketed as Out! International. Call 800-448-8552, or http://www.outinternational.com. Try the spray bottle and get the 64-oz. refill, from stores like PetSmart or WalMart. The labels are currently yellow, red and blue.
One of my two cats got scared from a guest cat I was housesitting; mine urinated on my cotton/down bedspread in one large pool, over a foot across. After following the directions for OUT! then running it through the washing machine, the smell is completely gone, the stain is gone, and the bedspread is NOT discolored! This is a great enzyme-based product!
ThirdDayFan > sanctuaryranch (dot) net
I used a powered douche packet, (got this at Osco), mix it with hot water and wash everything. It worked great for removing the smell from the walls and I also put it in the rug cleaning machine. I got this idea from the Vet, I told him I didn't want to spend the money on what he was selling.
I had a similar problem with a rental house. The tenants had pets over the years (even though their contract indicated no pets) and when the airconditioning was turned off, the house smell was absolutely rank.
Ended up having to replace the carpeting. When it was removed I washed the bare concrete floors where the yellow stains were located with clorox water, just to make sure the repulsive odor didn't come back up through the new carpeting.
If the air had been off when the walk through was performed, they would have lost their deposit. Cost me some $7,000 to get rid of the odor by replacing the carpets and padding. Even tried cleaning the carpets prior to replacement. but that didn't solve the problem.
I have seen ads in which a black light is used to locate pet deposits that have sunk into the carpet. This may help you. Didn't see the ads until after the carpets were replaced. However, I was told by more than once source that once it's in the padding, it is there forever. If you could locate the spot, am wondering if a thorough steaming might make a difference.
The tenants had posters on the walls during the check out, which were actually covering multiple holes in the walls and flourescent star stickers all over one bedroom which took hours to remove.
If I EVER have a rental again, I am NOT letting my DH do the check out! And if a prospective apt. manager ever calls for a reference, they are going to get an earful! Did I forget to mention cigarette butts all over the patio?
Cat odor is very difficult to get rid of, (like skunk odor) but it is possibly. Dilligence and time is the key. I don't know what you purchased from the vet, but it may take several applications and airing out for the odor to be fully eliminated. Any products you use should be enzyme based products since the enzymes work to kill the lingering bacteria that is producing the odor. www.fosterandsmith.com has a enzyme product called "Stain Away" which can be applied with a spray bottle and left to dry onto the surface. It is also non-toxic since you are spraying on a ceiling in a place where your family will sleep. Also wiping the wood down with a baking soda and water solution between treatments with the enzyme product will help as well. Worse case scenerio is you may have to have the paneling replaced. Good luck.
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