Safety Issues

Pressure Washer Cleaning Safety

Depending on what you’re cleaning, each application has its own specific procedure. Here are some general things to remember:

  • Always use the right nozzle. Using a nozzle that concentrates too much power can harm some surfaces, especially wood.
  • Use the chemical recommended by the manufacturer. Most manufacturers have detergents and waxes approved for use in their equipment. Different formulas are available for houses, decks, degreasing, and car washing/waxing.
  • Cleaning a house is best done from ground level, rather than on a ladder. Use accessories such as spray arm extensions and brushes for this type of project.
  • Cleaning results vary based on:
    • Whether or not you use detergent.
    • How far you are from the surface being cleaned.
    • How high the water pressure is.
    • How wide you set the spray angle.

Pressure washers are equipped with safety features designed to reduce pressure buildup. Unloaders and thermal relief valves prevent heat and water pressure from reaching dangerous levels. An oil-level indicator ensures that the washer stays properly lubricated.