[Chazz]

I am posting this message on behalf of a friend who stained his concrete driveway with battery acid from his golf cart. Does anyone have a method that will actually totally remove these kinds of stains? I had one on my driveway, left by another friend's electric golf cart, and tried everything, including pressure washing with heavy duty concrete cleaner, with no success. Ultimately, we covered ours up with pavers. That is not an option for my friend as he lives in a villa.