Winter can take a toll on pressure washers, especially if they are not properly prepared for the cold months. Freezing temperatures can damage components like pumps, hoses, and seals, leading to costly repairs or replacements. Winterizing your pressure washer ensures its longevity and reliability when spring arrives. Here’s a detailed guide to help you protect your investment.
Why Winterize Your Pressure Washer?
Freezing temperatures can cause water left in the pump, hoses, or other components to freeze and expand, leading to cracks or irreparable damage. Proper cleaning and storage prevent rust and corrosion, increase longevity, and ensure optimal performance when you use the pressure washer again.
Tools and Materials Needed
To winterize your pressure washer, you will need antifreeze (non-toxic, pump-safe), a pressure washer pump saver (We recommend CAT Pumps Pump Protector), a garden hose, a bucket, a cleaning brush or cloth, a wrench set (if disassembly is needed), and a storage cover or tarp.
Steps to Winterize Your Pressure Washer
Preparation
Begin by reading the owner’s manual to familiarize yourself with the manufacturer’s recommendations for winterizing your specific model. Choose a suitable location for the process, ideally a well-ventilated area away from flammable materials.
Clean the Pressure Washer
Flush the system by connecting a garden hose and running clean water through the pressure washer to remove dirt, debris, and detergent. For units with detergent tanks, rinse the tank thoroughly to avoid soap residue. Scrub the surface with a damp cloth or brush to remove grease, oil, or dirt. Clean the nozzles by detaching them, soaking them in warm, soapy water, and using a small brush or nozzle cleaning tool for hard-to-reach areas.
Drain the System
Turn off the machine and disconnect it from its power source or shut off the engine. Release pressure by squeezing the spray gun trigger. Remove hoses, spray guns, and other accessories to drain all water. Tilt the pressure washer to ensure no water remains in the pump or hose connections.
Add Antifreeze
Use pump saver or antifreeze by attaching it to the water inlet and running the solution through the system. Alternatively, pour non-toxic antifreeze into the pump manually. Start the pump briefly to circulate the solution throughout the internal components. Attach a note indicating antifreeze has been used to avoid accidental removal before next use.
Store the Unit
Choose a dry, indoor space to keep the pressure washer in a temperature-controlled environment. Cover the machine with a storage cover or tarp to shield it from dust and moisture. Store hoses, spray guns, and nozzles in a dry location to prevent damage.
Tips for Gas-Powered Pressure Washers
If you have a gas-powered pressure washer, empty the fuel tank or use a fuel stabilizer if you plan to leave fuel in the tank for an extended period. Run the engine until the fuel tank is empty to prevent gumming in the carburetor. Drain old oil and replace it with fresh oil to maintain engine health. Remove the spark plug, clean or replace it, and store it separately to prevent accidental ignition. Apply a light oil coating to pistons, valves, and seals to prevent rust and sticking.
Tips for Electric Pressure Washers
For electric models, unplug the unit from the outlet before starting any maintenance. Inspect cords and plugs for wear or damage and repair them as needed. Ensure the motor and electrical components are completely dry before storage.
Common Mistakes to Avoid
Avoid leaving water in the system, as even small amounts can freeze and cause damage. Skipping maintenance like cleaning or oil changes can lead to long-term performance issues. Improper storage in extreme cold or moisture can accelerate wear and tear. Always use non-toxic, pump-safe antifreeze instead of automotive antifreeze to avoid damaging the system and harming the environment.
Quick Checklist
Cleaned the pressure washer
Drained all water from the system
Added antifreeze or pump saver
Stored accessories separately
Covered the unit for protection
Performed additional steps for gas-powered or electric models
Properly winterizing your pressure washer is a straightforward process that can save you time, money, and frustration when spring arrives. By following these steps and avoiding common pitfalls, you’ll ensure your pressure washer is ready to tackle tough cleaning jobs for years to come. Don’t let winter ruin your valuable equipment—take action today!
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