How fast is a pressure washer?
Likewise, what is a good PSI for a pressure washer?
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.
Similarly one may ask, how long can you run a pressure washer?
To avoid damaging the pump: Never run a washer longer than three to five minutes (depending on the model) while the trigger is off. With the washer running and the trigger locked “off,” adjust pressure and spray settings, or insert nozzle tips in the spray wand. Now the washer is ready to use.
For any car, you need to choose a pressure washer which emits water with a pound per square inch (PSI) amount of 1200 to 2200. Anything more than 1900 PSI or at best 2000 PSI can damage the paint job on your car. In the same way, anything below 1200 PSI will not be forceful enough to clean your car properly.