One of the most important things you can do to ensure the longevity of your STIHL gas or electric pressure washer is to ensure it is properly winterized. If done incorrectly, or not at all, expensive repairs may be required. By employing STIHL’s easy to use Pump Conditioner and Winterizer in conjunction with the steps below, you can ensure that your pressure washer is ready to go come spring time.

1. With your pressure washer turned off, disconnect all hoses.

2. Remove the foil seal located under the valve of the STIHL Pump Conditioner and Winterizer.

3. Replace the valve. Make sure the valve is in the closed position and attach the bottle to the garden hose fitting inlet of the pressure washer.

4. When the bottle is securely attached to the inlet, open the valve of the STIHL Pump Conditioner and Winterizer and gently squeeze the bottle.
For Gasoline Models – Make sure the engine switch is in the off position. Pull the rope when squeezing the STIHL Pump Conditioner and Winterizer to help flush the fluid through the entire pump.
For Electric Models – Turn on the unit and gently squeeze the conditioner and winterizer with the unit running as it will help draw the STIHL Pump Conditioner and Winterizer through the system.

5. Whenever possible, store the pressure washer in an area that is away from the outside elements.

Precaution needs to be taken when winterizing your pressure washer. Any fluids left inside the engine can cause damage. The STIHL Pump Conditioner and Winterizer not only protects your pressure washer from freezing, but it will also prevent the harmful build-up of hard water mineral deposits. A little preventative maintenance can go a long way.