If your cat has urinated on your carpet, use bottled club soda. Remove the cap,
stick your finger inside to block the top, shake hard to fizz and with your
finger still inside the opening spray the club soda on the carpet until lightly
wet. Don't soak the carpet but apply thoroughly. The carpet might smell worse at
first, but when it dries will totally neutralize the odor & smell. This is
not an odor cover up, it neutralizes the odor permanently and doesn't just cover
one smell with another.