Add 1 3 cup of powdered laundry detergent.
Clean stains off concrete patio.
Sweep up any debris leaves twigs etc and.
After the vinegar fizzles out work in some laundry detergent using a stiff brush.
Using the cleaning solution.
If you want to remove stains that have.
Finish by rinsing the area with a hose.
Let it sit until the black or green stains turn white but don t let it dry.
Apply with a brush to mildew stains.
Make a baking soda and bleach paste.
How to clean concrete patio method 1 of 3.
Rinse with clean water and repeat as necessary to remove the stain.
Mildewcide recipe pour 1 quart of chlorine bleach into 3 quarts of water.
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.
Clear the area to be cleaned.