Cat smell or cat urine smell?
If it is the latter, I have had success with Nature's Miracle. If the smell is just the animal, that will diminsh with time and with changing out blinds, flooring, wall ... read more
The basement is leaking through the foundation or block wall? If so, there is nothing you can put on it that will keep the water back if there is enough of it outside the wall.
You need to fix the wa ... read more