Measures the volume of water flow. Higher GPM allows you to rinse away debris faster, making it vital for cleaning large areas like long driveways or siding.
A helpful way to compare models is by multiplying PSI x GPM . A unit with higher CU will generally be more efficient overall. 2. Choosing a Power Source: Gas vs. Electric what to look for when buying a power washer
The choice between gas and electric is the most significant factor affecting your budget and how much work you can do. Pressure Washer Buying Guide - Lowe's Measures the volume of water flow