Things You'll Need
- Hot water
- Measuring cup
- Baking soda
- Hard-bristled scrub brush
Instructions
Soak the spot on the concrete with hot water, preferably boiling.
Sprinkle one cup of baking soda over the top of the stain. If the stain is bigger than 6 inches, apply an extra half cup for every extra 3 inches of stain.
Scrub the baking soda into the stain with a hard-bristled brush, and let sit overnight.
Pour a half cup of hot water over the top of the baking soda, and scrub the stain with the hard-bristled brush once more.
Wash the baking soda, and stain, away with hot water. If the concrete you are washing is in a basement, wipe up the liquid with a towel, or use a wet/dry vacuum to remove the water.