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My in-laws have a cat problem. The neighborhood cat is spraying the outside of their house and evidently it really stinks. How can they get rid of the smell?

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Do they own an unspayed or nonneutered cat? – mikes Jan 8 '13 at 21:43
No, they are both very allergic to cats and dogs. My initial suggestion was for them to get a bigger cat, something like a lion or tiger. – auujay Jan 8 '13 at 21:53
Rent a very big dog – shirlock homes Jan 8 '13 at 23:18
That doesn't like cats. – Jon Raynor Jan 11 '13 at 3:04

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Short of industrial cleaners and Kilz Primer, I've not found a better product for dealing with organic compounds deposited by pets.

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Are these enzyme type cleaners? I haven't found anything that removes cat urine except tearing out carpet and pad, priming the subfloors and new carpets . Hardwood is really a challenge. – shirlock homes Jan 8 '13 at 19:33
i really missed the meaning of the question, they are talking outdoors. DUH! – shirlock homes Jan 8 '13 at 23:17

Vinegar and water should work, but really the source of the problem must be stopped.

You can try oranges, lemon, grapefruit (citrus) in the area to keep them away. Also I suggest spay/nueter if it is the neighbors cat. If it is feral, trapping is an option as well.

There are other ways which are more costly:

Motion Sensor + Sound

Motion Sensor + Water

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