A.E.
My mother-in-law swore by a solution she mixed up and when I started potty training a new puppy I found it was better than gold. Fill a spray bottle with club soda. Then add a little bit of vinegar. I always just shook it up and added more vinegar until I could just barely smell the vinegar. After using paper towels to soak up as much of the 'pee', spray enough just to cover the wet area. Blot it up, then repeat several times if necessary. I guess the club soda got the stain while the vinegar neutralized the smell. I used this every time my dog ‘went’ in the house and there was never a stain or a smell. Good Luck!