Are there any problems to worry about when pressure washing concrete? Will concrete be damaged? Are chemicals, clorox, for example, something of concern?
- posted
20 years ago
Pressure washing of concrete, any problems
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- posted
20 years ago
Pressure washing concrete should not damage it. If it does, then the concrete was damaged in the first place. Keep acids off concrete, bleach is fine.
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- posted
20 years ago
Really pay attention to the part where you're told not to leave the chemicals on the concrete until they dry ;->
I used one of the spinning rotary nozzles the last time I did my sidewalk. Worked a trick.
Best Regards,
Tim ==
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- posted
20 years ago
Addiction.
I rented one of the really powerful units to do my walks, which were all full of algae & were slippery when wet. The results were so dramatic that I'd doubt I'll go six months between rentals anymore.
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- posted
20 years ago
Hi,
Clorox is chlorine and very high PPM of chlorine. Chlorine is not really dangerous to concrete but it leaves a white film on it if you don't get it all out. Believe it or not a good all purpose cleaner of anykind cuts the grease fairly good and is cheap to use and safe. Wear safety goggles!
work safe, candice
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- posted
20 years ago
Depending on why you're pressure washing, a light bleach solution is often used to kill algae and mildew. There are commercial cleaners available, check your local hardware store or Lowe's/Home Depot.
Jeff
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- posted
20 years ago
Chuck,
I've pressure washed dirty concrete paving and also dirty asbestos roof sheets. The pressure washing does remove a thin film of concrete or asbestos in my experience. Not a lot is removed probably, I just wouldn't do it too frequently. The wear finish surface for concrete is often quite thin and you might abrade it all away with the high pressure water.
Ross