If you ignore the pressure you must apply for several types of surfaces, mostly you can damage the surfaces such as driveways, patios, or even vehicles, by incorrect pressure washing.

Using a pressure washer with the incorrect tip or using too much pressure or a combination of both may damage your property.

Depending on the type of surface, different levels of PSI (Pounds per square inch) are recommended:

1. Vehicles – 1500 PSI.
2. Trucks, trailers, tractors – 1800 PSI.
3. Platforms, walls, fences – 2000 PSI.
4. Large surfaces, patios, concrete – 3000/3500 PSI.

You can find a great list of useful tips from other pressure washing professionals in the REDFIN Blog.