Introduction

Make sure your pressure washer is ready for spring by winterizing it.

Pressure Washer Winterization

Like most outdoor power equipment, pressure washers occasionally need some TLC, especially when summer’s over and you’re putting it away for the winter.

Forgetting to properly winterize it could mean it won’t start or run well in the spring, and you’ll be spending time troubleshooting your pressure washer rather than using your pressure washer. Avoid these problems by treating your pressure washer right as you prepare to store it for long, cold months ahead.

Both electric and gas-powered pressure washers need winterizing, but the process is simpler with an electric unit. The photos in this article show me winterizing my gas-powered machine.

The usual approach to winterizing a pressure washer, blowing out water with an air compressor, is slow and troublesome. The method I’ll describe here is much faster and easier. All told, it will probably take no more than 20 to 30 minutes — maybe considerably less if you don’t need an oil change and there’s no gas in your machine.