cleaning concrete - Tommy Mac Discussions

This topic has 1 reply, 1 voice, and was last updated 19 years, 8 months ago by Jasper.

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- September 16, 2004 at 8:30 pm #47318
  
  Unregistered-mlwlpt
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  I need to clean a concrete patio and drive way that has black residue on it. I think it is from leaves rotting. If I use a hose nozzle on firm spray, is there a safe solution I can use for the surrounding greenery?
  Thank you
- September 16, 2004 at 11:06 pm #251667
  
  Jasper
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  A power Sprayer, the stronger the better, will clean concrete. My sprayer is 2300PSI and it got rid of rust stains.
  Adios… Jasper
  
  Jasper Castillo
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