That much pressure is designed to strip substances away from surfaces so be careful when using a pressure washer.
Pressure washer psi for concrete driveway.
Stanley 2 3 gpm 2800 psi gas power portable pressure washer cleaner 2 pack.
Usually concrete flooring would be around 8 inches so a psi 3500 to 4000 is good enough.
Few people realize that you can damage your concrete driveway or patio by pressure washing.
The powerboss 3100 max psi pressure washer is a powerful durable and easy to use a pressure washer for the driveway.
How to pressure wash concrete.
If done properly pressure washing concrete can make a patio driveway or walkway look as good as new in just a day s time.
It can just as easily strip away a plant as a stain.
This pressure rate is not too weak and not too strong to clean up the dirt or the grime on the concrete patio or driveway flooring.
For this post you should know that we don t make a distinction between power washing vs.
Most electric pressure washers create 1300 1700 pounds per square inch of pressure psi with a water flow of 1 5 gallons per minute gpm but experienced contractors recommend between 2000 and 3000 psi and a flow of at least 2 5 gpm to clean dirty concrete effectively.
For tougher stains such as paint hold tip 3 to 4 inches from concrete surface moving with slower nearly still strokes to ensure removal.
Pressure wash concrete by holding down spray handle working your way back and forth from one side of concrete surface to the other overlapping each stroke by 6 to 8 inches.
Can i damage my concrete with a pressure washer.
To calculate its cleaning power or cp multiply a pressure washer s maximum psi rating by its gpm flow cp psi x gpm.
The recommended minimum psi for cleaning concrete is 2200 psi however if you can afford it 3 000 psi will get the job done quicker.