Freezing weather will be here soon in northeast. One frozen pressure washer is all I can tolerate before i learned my lesson. Always ran the machine and fed them automotive washer solvent or RV anti freeze. I fabricated several methods for winterizing, starting with simple pail with hose attachment to purchase of RV water pump wired to battery to pump anti freeze through machines. This year I have added wash sink to my trailer and will need to winterize trailer and two pressure washers. I added outside hose bib to trailer when building toy hauler so it was now a simple operation to drain trailer water tank and add RV anti freeze and circulate the stuff through to pressure washers outside trailer. Killed 3 birds with one stone