Pressure Washer FAQ's
How often do I need to change the oil in my pressure washer?
We recommend changing the oil in your pressure washer after the first 20 hours of operation. After that, change the oil every 100 hours or 3 months, whichever comes first. Use a high-quality motor oil matched to your operating temperatures. Regular oil changes help extend the life of your pressure washer.
What PSI should I use to clean different surfaces?
Use 1500–2000 PSI for delicate surfaces like cars and patio furniture, around 2500 PSI for driveways and brick, and 3000+ PSI for heavy-duty jobs like paint stripping or concrete cleaning. Adjust your nozzle to control PSI output and avoid surface damage by keeping a safe distance.
Why does my hot water pressure washer shut off while in use?
First check the pump oil level—low oil can trigger the thermal relief valve. Overheating, low water supply, or a faulty thermostat may also cause the machine to shut off during operation.
What kind of nozzle do I need to wash my car?
Use a 40° fan nozzle for car washing or other delicate surfaces. It provides a gentle spray pattern that reduces the risk of paint or finish damage. Maintain a 12–24 inch spray distance.
How do I clean my pressure washer's water inlet filter?
Turn off the water supply, disconnect the inlet hose, and remove the filter screen from the inlet port. Rinse thoroughly to remove debris, then reinstall the filter and reconnect the hose.
Why does my pressure washer have trouble starting?
Hard starting is commonly caused by old fuel, a dirty carburetor, low oil, or a fouled spark plug. Drain old gas, clean/replace the air filter, verify oil level, and replace the spark plug annually.
What cleaning solutions can I use in my pressure washer?
Use detergents designed specifically for pressure washers. Avoid bleach, acids, or corrosive chemicals. For vehicles, use a dedicated car wash solution. Always spot test in an inconspicuous area.
How do I know if my pressure washer pump needs to be replaced?
Signs include water pressure loss, excessive noise or vibration, leaking water or oil, failure to build pressure, or repeated priming issues.
What is the recommended PSI for wood cleaning?
Use 2000 PSI or less for wood surfaces such as decks, fences, and outdoor furniture. Higher PSI can damage softer woods. Use a fan nozzle and maintain a 12–24 inch distance.
How often should I change the pump oil?
Change pump oil after the first 25 hours of use, then every 200 hours or 3 months. Use high-quality non-detergent 30W oil and fill to the center of the sight glass for best performance.