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You should avoid using a pressure washer on any surface or item that could be damaged by the high-pressure spray, as some materials are too delicate to withstand the force.

Key items and surfaces to avoid include:

• Electrical Components: Never pressure wash electrical systems, as water can cause short-circuits and create a safety hazard. This includes utility meters, breaker boxes, electrical outlets, generators, and HVAC or air conditioner units.

• Delicate and Fragile Materials: Fragile items can crack, shatter, or be stripped by the pressure. Avoid pressure washing windows, glass, light fixtures, shingled roofs (especially asphalt), and stucco.

• Painted, Stained, or Sealed Surfaces: Unless your goal is to strip the finish, do not pressure wash painted surfaces, stained wood (like decks), or anything with a protective seal that could be stripped away. Be especially cautious with older surfaces that may contain lead paint.

• Soft Woods and Certain Decking: Delicate surfaces like softwood, composite decking, and antique or wooden patio furniture can be etched or damaged. If you must wash wood, use a lower-powered pressure washer with a wide-angle nozzle to prevent damage.

• Living Things: Never use a pressure washer on people, pets, or plants. The force can cause serious injury and will destroy landscaping.

Annually, or more if located in humid or heavily polluted areas.

Excavators work in tandem with dump trucks to haul away excess dirt and soil. The excavator will dig into the ground and move the excess dirt into a pile. Using a backhoe, the specialist can fill a truck with excavated soil from that pile. They will then drive the truck to a different location where they can dump the material.

If you’re using water pressure above 2,000 PSI, you should wear a full face shield—at 4,000 PSI, a water jet can easily slice through skin. Always wear heavy-duty, waterproof gloves and rubber boots with metatarsal guards. If you’re working with hot water, make sure your gloves are insulated.