Discussion in 'Power Washing' started by robbo521, Mar 11, 2008.

  1. robbo521

    robbo521 LawnSite Senior Member
    Messages: 601

    i have rust stains on my chimney from the top cap.whats the best thing to get this off with.this is my own house so not much will hurt it.
  2. squirtgun

    squirtgun LawnSite Member
    Messages: 88

    Oxalic acid should take care of the problem

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