High-Pressure Washers & Surface Cleaners

What is the function of the 'Unloader Valve' on a high-pressure pump when you release the spray gun trigger?

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 Correct IncorrectIt diverts the continuous water flow into a closed internal bypass loop, preventing dangerous pressure spikes that would burst hoses or stall the engine while the gun is closed.

What is the function of the 'Unloader Valve' on a high-pressure pump when you release the spray gun trigger?

• It diverts high-pressure water into a bypass loop when the trigger is released, relieving pressure on the pump
• It measures water hardness
• It drains the gas tank to prevent fires
• It injects liquid soap into the high-pressure stream