I have a dog trainer who says it good to use vinigar. . use paper towl and rub spottings 1st and let your dog smell it #2-pour vinigar over spotings and then with a paper towl damp it up and let your pup smell it and say "no" and tug with loose wrist the back of the pups neck then let go! eventually with patience this method works- also try neaturing your dog this will decrease the spotting they're marking they're turf, dog intincts.