A pressure washer unloader valve prevents the pressure from building to the breaking point when you aren't spraying water. A "diversion loop" is created to cycle the water back to the inlet valve and inlet part of the water pump. Unfortunately, the unloader valve is often a cause of trouble. Some power washer users report problems such as the pressure washer motor dying after spraying is done, minimal pressure, and sometimes even leaking sprayers. There are a variety of fixes to problems such as these, the simplest being the replacement of the unloader valve. If you need to do this kind of pressure washer repair, it's absolutely essential to replace the power washer valve with one that has equal or better gallons per minute (GPM) and PSI ratings. Failure to do this can result in additional pressure washer problems, including a safety hazard connected with the pressure of the unit overwhelming the unloader valve, compromising or even destroying it.
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Need a little more scrubbing power? Want to increase your cleaning efficiency?
Ultimate Washer offers a variety of Rotary Nozzles from which you can choose. Your cleaning time can be cut in half with the addition of this nozzle. These nozzles rotate at high speeds to increase the intensity of the spray. They can remove rust, graffiti, and barnacles from the bottom of boats just to mention a few. They can be used on pressure washers with as little as 3000 PSI up to the super heavy duty pressure washers whose PSI reaches 5000 PSI. Find more info at http://www.ultimatewasher.com/pressure-washer-rotary-nozzles.htm