The unloader valve controls the pressure and flow of water through the pressure washer. If it's not functioning properly, you may experience inconsistent pressure.

I spoke to an expert to learn how to fix a pressure washer. He gave me 8 easy fixes that can save you hundreds of dollars in repairs ...

The ZVI unloader valve can be used in all brands of compressors, at any speed, for both lubricated and non-lubricated cylinders. It can be used with virtually any gas where the maximum differential ...

Inside this frame is a 1.9-horsepower electric motor, high-pressure pump, unloader valve, and other necessary controls.