The first thing to consider when preparing to winterize your pressure washer is your level of use. The first thing to consider when preparing to winterize your pressure washer is your level of use. If you plan to leave your washing machine completely off during the winter months, you will need to rinse out the gasoline by letting the engine run until it is completely empty. Remove a tarp and make sure you wear eye protection.

After you have removed all liquids from the pressure washer pump system, move it to a clean, dry location. This prevents moisture from accumulating in the pump and high-pressure components from freezing and mineral deposits from forming.

What happens if you don’t winterize a pressure washer?

While you can still use relatively cold water to wash your car or clean driveways in winter, you shouldn’t risk doing so at extremely low temperatures. This expansion can result in catastrophic damage to the pump head, coil, pressure lines, and even supply lines and any filters that may be installed. The main difference from regular antifreeze is that it is non-toxic and biodegradable, making it perfect for a pressure washer. If there is wind, you must stop using a cold or hot water pressure washer as soon as the temperature reaches 34 degrees.

So if you intend to use your pressure washer during the cold winter months, be sure to make a note of the outside temperature before you prepare to make sure it’s both safe and sensible.

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