Facts About Water Consumption With Power Washers | Hunker
The amount of water pressure you need your power washer to provide is based on the task. For example, smaller jobs, like washing a car or boat, require a lightduty power washer that produces 1,400 to 1,750 pounds per square inch (PSI) of water pressure at a flow rate of to gallons per minute (GPM), whereas cleaning your driveway mandates a mediumduty power washer with 2,300 to 2,500 ...