As mentioned above the psi and gpm have to work together for optimal cleaning results.
Is 1700 psi enough to clean concrete.
A 1 500 psi unit might indicate a high pressure to a homeowner for cleaning decks and siding.
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.
However we observe that a psi of 4500 is ideal for typical concrete flooring.
A driveway made of asphalt.
I hang it off ladders to get to the peaks and my only limit is the length of the hosing and extension cord.
Cleaning concrete requires a good flow rate and a decent amount of pressure.
Almost all contractors agree that 3000 psi is more than enough for almost all concrete cleaning while the gallons per minute recommended varies.
Can i damage my concrete with a pressure washer.
Here s an approximate list of psi you need to clean different house objects.
Concrete floor or stucco.
This pressure is more than a garden hose.
For example it ll take a lot less pressure to clean dust and salt from your vehicle than it will take to clean oil stains from your garage floor.
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.
But as we told you that it would vary from material to material and also the amount of dirt you are going to clean.
The exact or a range of psi required is what the pressure washer psi chart reveals.
Few people realize that you can damage your concrete driveway or patio by pressure washing.
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.
Usually concrete flooring would be around 8 inches so a psi 3500 to 4000 is good enough.
I m cleaning deck and wood siding with a generic 1500 psi electric.
On the contrary this pressure is too less to clean parking areas stained with tar.
The pressure put out by a power washer is measured in psi pounds per square inch and the psi requirements can vary based on what you re aiming to clean.
Operating at these two minimum levels is crucial if one wants to clean concrete efficiently.
Experts say that cleaning concrete often requires having a pressure washer of a minimum of 3000 psi as well as a flow rate of 5 gpm.
Be careful with the higher psi on vinyl siding.
