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      03-16-2013, 10:31 PM   #11
Edjay
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Drives: 08 E90 AW, 76 2002
Join Date: Jul 2011
Location: Sacoftomatoes Ca

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Mix some baking soda and water. Brush it around the affected area. This will let you know if its acidic. If it is, it will bubble up. This will also rid the area of acid.