The best way to power wash a house exterior is to use a pressure washer. A pressure washer is a machine that uses water under high pressure to clean surfaces. The water is sprayed out of the machine through a nozzle, which gives it enough force to remove dirt, dust, and stains from the surface. To power wash a house exterior with a pressure washer, you will need to attach the nozzle of the machine to the end of your hose. You will also need to wear protective clothing, such as goggles and gloves, when using a pressure washer. When washing your house, be sure to keep the nozzle at least 18 inches away from the surface and move it in slow, even strokes.

There are a few things you need to know before power washing your house exterior: -The types of surfaces you're power washing (brick, vinyl, wood, stucco, etc.) -The PSI of your power washer -Your water pressure -The type of detergent or cleaner you're using If you're not sure about any of these things, it's best to consult with a professional before starting. They will be able to help you choose the right attachments for your power washer and the correct cleaning solutions. It's also important to follow all safety precautions when using a power washer.