What Is The Difference Between PSI and GPM?

Home » Outdoor Living » Pressure Washers » What Is The Difference Between PSI and GPM?

Pressure washer shoppers sometimes focus too much attention on PSIs and overlook GPM, Gallons Per Minute.

PSI will help you break the chemical bond between the cleaning surface and the dirt. Once the bond is broken, the extra PSI does little to speed up the cleaning time.

As a general rule, the larger the GPM, the more surface area a pressure washer can clean. A 2000 PSI model with a 2 GPM flow rate can clean approximately 5 – 7 square feet in one minute. But if the same model had a 3 GPM flow rate, it could clean 8 – 10 square feet in the same amount of time.

Next Page: What Do I Need To Consider Before Buying A Pressure Washer?

Related Pressure Washers Articles

---

• How Do I Know What PSI I Need Buy In A Pressure Washer?
• What Is The Difference Between PSI and GPM?
• What Do I Need To Consider Before Buying A Pressure Washer?
• What Do I Need To Know Before I Purchase A Pressure Washer?
• Pressure Washer Facts