Almost all contractors agree that 3000 psi is more than enough for almost all concrete cleaning while the gallons per minute recommended varies.
Psi needed to clean concrete.
The exact or a range of psi required is what the pressure washer psi chart reveals.
Now the psi that you re going to use for your concrete flooring will really depend on the thickness of the concrete slabs.
For instance the psi value for car cleaning should be less than the psi or pressure needed for cleaning those stubborn floor stains.
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.
As concrete is much stronger than wood and your car you might need a stronger psi for cleaning.
A 1 500 psi unit might indicate a high pressure to a homeowner for cleaning decks and siding.
Usually concrete flooring would be around 8 inches so a psi 3500 to 4000 is good enough.
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.
Cleaning concrete requires a good flow rate and a decent amount of pressure.
This pressure is more than a.
Arguably cleaning concrete is one difficult task.
A pressure washer with about 3 gpm and 3000 psi is ideal for most concrete and brick cleaning jobs.