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Registered
Join Date: May 2002
Location: Southeastern U.S.
Posts: 3,300
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Madmmac is quite correct. The cleaning ability of a pressure washer is far more dependent on gallons per minute than PSI. The better portable machines are in the 4 to 4.5 gpm. range. When you get to 5.5+ you are talking about a 20 to 25 hp. motor.
Pumps are not necessarily disposable. A good shop can rebuild a good pump for relatively little compared to the cost of replacement.
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Lothar of the Hill People
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