Concrete Driveway cleaning/top coat suggestions?
We have a small issue on the driveway of a rental house we occupy - a golf cart's batteries were rinsed off and left dark stains running down the driveway - we've cleaned it fairly well with household cleaner - but some residual remains. (see photo) We could keep going but as you can see it only makes the "clean" area much lighter than the original.
The landlord wants it "back to the way it was" - so we need to further clean or discolor it to match the old driveway. It's NOT very much area - only about 10 yards long and 4 yards wide at most.
We're not sure which way to go - sandblast, acidwash or some type of spray top coat (just very thin/light), IT ONLY HAS TO LAST ONE MONTH - we are leaving in August and do not care about the long term look or health of the driveway. It is an old crappy cracked discolored driveway anyway - on a shoddy property - he is only trying to extort money out of this!