5 Easy Steps to Winterize Your Pressure Washer

5 Easy Steps to Winterize Your Pressure Washer

As the chilly winds of winter descend upon us, it’s crucial to prepare our outdoor equipment for the season’s harsh conditions. A pressure washer, a powerful cleaning tool, requires proper winterization to prevent damage from freezing temperatures. Neglecting this essential step can lead to costly repairs or even potential safety hazards. Therefore, it’s imperative to allocate time and resources to winterize your pressure washer promptly.

First and foremost, drain all water from the pressure washer’s pump, hoses, and accessories. Water left in the system can freeze and expand, causing cracks or even catastrophic damage to the pump. To drain the water effectively, detach the hoses and fittings, open the drain plugs, and allow the water to drain completely. Additionally, remove the spark plug from the engine and pull the starter cord several times to expel any remaining water from the combustion chamber.

After draining the water, apply a layer of anti-freeze or compressor oil to protect the internal components of the pressure washer. Anti-freeze helps prevent corrosion and freezing, while compressor oil lubricates moving parts and prevents rust. Apply the anti-freeze or oil to the pump, hoses, and any other exposed metal surfaces. Once applied, reconnect the hoses and fittings, and store the pressure washer in a dry and sheltered location, away from direct sunlight and extreme temperatures.

Disconnect the Water Hose and Power Cord

To disconnect the water hose from the pressure washer, first turn off the water supply at the source. Then, disconnect the hose by pulling the quick-connect fitting away from the pump. If your pressure washer has a garden hose connection, simply unscrew the hose from the pump.

To disconnect the power cord from the pressure washer, simply unplug it from the outlet. If your pressure washer has a GFCI (ground fault circuit interrupter), you will need to reset the GFCI before you can unplug the cord.

Things to Consider:

Disconnect the Water Hose Disconnect the Power Cord
  • Turn off the water supply at the source
  • Disconnect the quick-connect fitting
  • Unscrew the hose (garden hose connection only)
  • Unplug the cord from the outlet
  • Reset the GFCI (if equipped)
  • Drain and Flush the Pump

    Draining and flushing the pump is crucial to prevent freezing and damage during winter storage. Follow these detailed steps to ensure proper pump preparation:

    1. Disconnect Water Source:

      Turn off the water supply and disconnect the pressure washer from the hose.

    2. Drain the Pump Body:

      Locate the drain plug on the bottom of the pump body. Position a bucket or container underneath and remove the plug to drain any remaining water.

    3. Flush with Anti-Freeze Solution:

      Recommended Anti-Freeze Solutions:
      – Automotive anti-freeze (ethylene glycol) diluted with water (50/50 ratio)
      – Commercial pump anti-freeze

      Fill the pump body with anti-freeze solution through the water inlet. Cycle the pump for several seconds to circulate the solution throughout the internal components.

    4. Drain Anti-Freeze:

      Once the pump is flushed, drain the anti-freeze solution into a suitably labeled container. Dispose of it according to local regulations.

    How to Winterize a Pressure Washer

    As the cold weather approaches, it’s important to winterize your pressure washer to prevent damage from freezing temperatures. Here’s a step-by-step guide on how to do it:

    1. Unplug the pressure washer from the power outlet and turn off the water supply.

    2. Pull the trigger of the pressure washer to release any remaining water in the pump and hose.

    3. Disconnect the high-pressure hose from the pump and the wand.

    4. Fill a bucket with automotive antifreeze.

    5. Attach the high-pressure hose to the pump again, but instead of connecting it to the wand, submerge the end of the hose in the bucket of antifreeze.

    6. Turn on the pressure washer and let it run for a few minutes until the antifreeze flows through the pump and hose.

    7. Turn off the pressure washer and disconnect the hose from the pump.

    8. Drain any remaining water from the pressure washer by tilting it on its side.

    9. Store the pressure washer in a dry, protected area where it will not be exposed to freezing temperatures.

    People Also Ask

    How do I know if my pressure washer is frozen?

    If you turn on your pressure washer in cold weather and it’s not working properly, it may be frozen. Signs of a frozen pressure washer include:

    • No water coming out of the wand
    • Pump making a loud noise
    • Pressure washer leaking water

    What happens if I don’t winterize my pressure washer?

    If you don’t winterize your pressure washer, the water inside the pump and hose can freeze and expand, causing the pump to crack or rupture. This can be a costly repair.

    Can I use bleach to winterize my pressure washer?

    No, you should not use bleach to winterize your pressure washer. Bleach can damage the pump and other components.