To get more pressure out of your pressure washer, you will primarily need to adjust the unloader valve.
If you notice a drop or want to increase the pressure your pressure washer delivers, follow these steps:
Check Your Nozzles First
Before adjusting any internal components, it's essential to rule out the simplest cause for pressure loss.
- Inspect your pressure washer nozzles.
- Look for any signs of wear or tear, clogs, or damage.
- Worn or damaged nozzles can significantly reduce pressure.
- Replace any questionable nozzles if necessary.
Adjusting the Unloader Valve
If your nozzles are in good condition, the next step, as recommended, is to adjust the unloader valve. The unloader valve is a crucial component that regulates pressure and flow.
- Locate the unloader valve on your pressure washer (consult your owner's manual if needed).
- To increase pressure, you will typically need to tighten the adjustment mechanism on the unloader valve.
- Important: Adjust the unloader valve in tiny increments.
- After each small adjustment, test the pressure output.
- Continue making small adjustments and testing until you achieve the desired pressure, without exceeding the pressure washer's maximum rated pressure.
Making adjustments gradually prevents damage to your pressure washer pump or other components.
This method focuses on fine-tuning the pressure output controlled by the unloader valve when other factors like nozzle condition are ruled out.
