If you must store your pressure washer in a location where the temperature is below 32°F, you can minimize the chance of damage to your machine by utilizing the following procedure:
1. Shut off the water supply and relieve pressure in the spray gun by depressing the trigger.
2. Disconnect the garden hose from the pressure washer, but the leave the high-pressure hose connected.
3. Tip the unit on its side with the inlet connection pointing up.
4. Insert a small funnel (to prevent spilling) into the inlet and pour in a 50/50 solution of antifreeze* and water.
5. Disconnect spark plug wire.
6. Without connecting the garden hose, pull the recoil several times to circulate the antifreeze in the pump system.
7. Continue to add antifreeze and pull the recoil until the antifreeze is expelled when the trigger is pulled.
8. Turn the unit upright.