a stray cat keeps weeing on my air brick and its stinking my house out . i have to dettol the brick which gets rid of the smell but with in a couple of days the cat wees on it again is there anythink i can use which will keep the cat away. thanx

After you've used the Dettol, you could sprinkle a load of Pepper all around and inside the holes.
Cats do not like Pepper!
Hope it works for you, let us know how you get on...

Or scatter orange peel, they don't like that either (allegedly)

thanx pauls a pet and fatbird i will give these a go and let you no how a get on

think this has worked havent smelt anythink in a few days and theres been no marks on the wall of the cat so thanx for the replies

You may have to keep scattering the pepper/peel every so often but glad to hear it's working for the time being