Chimneys across the world are famous for adding an aesthetic appeal to a multitude of homes. It is almost impossible to go anywhere without seeing a chimney rise into the heights of the sky with smoke billowing from its pipe. Unfortunately, no chimney can escape the horrid smoke dust that sticks to almost anything it contacts. It isn't difficult to remove soot, and with the right tools, it can be done in as little as six hours.
Chimney sooth can be removed in one of three ways: using a pressure washer (the safe and most effective way); with trisodium phosphate (TSP) and brushes; or, a combination of both.
Use a pressure washer to clean the soot off of concrete. Choose a pressure washer with at least 1500 lb. of pressure. The pressure washer will come with color-coded tips for various pressures; red is very high pressure, and black is the lowest pressure. Yellow and green are in-between, and will provide the safest, most effective pressure. Never use the red tip on concrete, as it will damage the surface.
Mix TSP in a one-to-three mixture: one part acid to three parts water. Use a 5 gallon bucket, and apply the mixture with a wire brush. Brush vigorously and allow the mixture to set for five minutes before you rinse it off with a garden hose. If the TSP alone fails to remove the soot, reapply, allow it to set for 5 minutes, then wash it off with a pressure washer.
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