1 Quart Bleach
2 Gallons warm water
2 Large pails and a scrub brush
Combine
the bleach and warm water in a pail. Pour mixture onto dirty
or stained concrete. Scrub the concrete with a bristle brush.
For stubborn stains let it soak for 20 minutes. Then rinse
the concrete with clean water. Note: If you are cleaning an
area where there is grass, rinse thoroughly to dilute the
bleach so it doesn't kill your grass.
This mixture as well as a commercial grade cleaner will
probably only remove so much of the stain. Typically over
time the stain will just fade away.
Combine
the bleach and warm water in a pail. Pour mixture onto dirty
or stained concrete. Scrub the concrete with a bristle brush.
For stubborn stains let it soak for 20 minutes. Then rinse
the concrete with clean water. Note: If you are cleaning an
area where there is grass, rinse thoroughly to dilute the
bleach so it doesn't kill your grass.