When operating a pressure washer, you should never point the high-pressure nozzle at people, pets, or electrical components, as the high velocity can cause severe lacerations or electrical shock. Never use narrow zero-degree red spray tips on delicate surfaces like wood, vehicles, or siding, as they carve wood, shred paint, and break glass. Additionally, never run the pressure washer with the water supply turned off, or you will burn out the pump instantly.
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