Using the cleaning solution.
Clean stains off concrete patio.
Let it sit until the black or green stains turn white but don t let it dry.
Make a baking soda and bleach paste.
Mildewcide recipe pour 1 quart of chlorine bleach into 3 quarts of water.
To remove pour one eighth of a cup of liquid dishwashing detergent into a spray bottle then top off the bottle with warm water and shake well.
Sweep up any debris leaves twigs etc and.
If you want to remove stains that have.
Spray the concrete stains with the soap solution.
Rinse with clean water and repeat as necessary to remove the stain.
For an easy way for cleaning grease off concrete surfaces like your driveway or patio spread baking soda on the stained area and allow it to sit for a few minutes before pouring vinegar over the stain.
Mix the detergent with hot to warm water and using a stiff bristled brush or broom generously apply the soapy solution into the stain using a vigorous back and forth motion.
After the vinegar fizzles out work in some laundry detergent using a stiff brush.
How to clean concrete patio method 1 of 3.
Apply with a brush to mildew stains.