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Old 09-12-2012, 06:55 AM
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Quote:
Originally Posted by nofearengineer View Post
Hey, I was just on a gardening website (no teasing ) and someone had said they had great results using "The Works" bathroom cleaner on concrete rust stains.



Only a couple bucks, so it's worth a try.


hydrochloric acid, it may etch the concrete

http://www.instructables.com/files/o...F8GN4CZIND.pdf
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