Accidents happen, and this one was a St. Bernard, in a bedroom, on the carpet, in several places. What a mess. What a SMELL!!!
Enzyme cleaner/deodoriser, pre treat let it sit then rinse. Repeat.
Stains gone and now the room is ready for Christmas.
I get home and guess what? One MY dogs has done the exact same thing. First time in 9 years.
Stephen, the Carpet Cleaner