- Rinse away visible urine puddles with a water hose.
- Examine the patio with a black (ultraviolet) light to locate urine stains that may have occurred before. Hold the light 3 inches above the cement's surface, and look for areas that appear to glow. Choose a day that is overcast, or perform the examination at dusk.
- Fill a bucket with 2 quarts of distilled white vinegar and 1 quart of water.
- Clean the affected areas with a scrub brush dipped in the vinegar solution. Use a circular motion, and rinse the brush often.
- Pour the remaining solution onto the cement, and scrub the entire surface well. Pay special attention to the sides and edges of the patio.
- Rinse away the vinegar solution using a water hose, holding the stream of water 6 inches from the surface of the patio.
- Examine the cement with the black light again. If any stubborn spots remain, treat the area with an enzymatic cleaner designed to remove pet stains.
Things You Will Need
- Water hose
- Black light
- Distilled white vinegar
- Scrub brush
- If your dog continues to urinate on the patio, clean the cement thoroughly and apply a coat of concrete sealer to keep the odors from penetrating.