One of the important points about chosing a pressure washer is GPM. You want lot`s of GPM. Pressure doesn`t really matter, but the amount of water you can put through it per minute is important. Get at least 2.0 gpm. Imagine trying to wash your car with a hand spray bottle. That`s what it`s like trying to rinse/wash a car off with a low GPM PW.
I have a 3,000 PSI 2.8 GPM John Deere, and it`s perfect for my touch free washes. I do use it at the full 3,000 PSI, too. But I have one of the wide angle dispersal tips on it so it doesn`t peel my paint off.
To answer Abbeysdad`s question about why you`d want a PW... Not having to touch the paint to do a complete wash is a huge benefit; if I don`t touch my paint, I can`t swirl it.
Important stuff when buying a PW:
Honda Engine
Triple piston type pump
High GPM
Most all of the electric ones sold at Home Depot, Lowes, Costco, etc. are very cheaply made and won`t last long at all. They also have very low GPM. If you go to a more expensive electric PW, you`ll have to have a dedicated 20 amp circuit to push the current needed for more GPM. You`ll either have to go with a big circuit or go gas to get decent GPM.
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