Is your concrete in the sun? If so this will work really fast.
Hose down so the concrete is wet. Work in sections and squirt Dawn dish soap. With a stiff bristle push broom, brush brush brush. Then toss out a liberal amount of good old white vinegar. Brush some more. Let sit for about 15 minutes, brush then rinse with garden hose. Repeat if necessary.
Every time I clean my mirrors, they end up having tons of streaks and almost look worse than before I started. What could I use to clean them that won't leave streaks...
See more
Color the rest of the concrete the same color as the ’stain’.🤔🐿
Is your concrete in the sun? If so this will work really fast.
Hose down so the concrete is wet. Work in sections and squirt Dawn dish soap. With a stiff bristle push broom, brush brush brush. Then toss out a liberal amount of good old white vinegar. Brush some more. Let sit for about 15 minutes, brush then rinse with garden hose. Repeat if necessary.
Or, rent a power washer and see if that does it.
After you've power washed, apply a liberal coat of Wet n' Forget Outdoors on a windless day when no rain is expected.
It will take many months, but will save you a great deal of work in the future.