I can’t help but laugh sometimes when I hear of a power washing contractor bragging about the pressure of his machine. It goes something like this, “My pressure washer is rated at 3500 psi.”
I think to myself, that is great if you want to remove the siding along with the mildew (joking).
Flow VS. High Pressure Washing PSI
But seriously, A well educated and experienced washing tech knows that pressure is only one element in achieving a safe and professional cleaning. At Power Play Inc., we run at a pressure between 500 and 1500 psi depending on surface (except masonry substrate). Yes, our machine is rated at 3500 psi, however, that isn’t necessary. With our process of using appropriate detergents, foaming agent increasing hang time (dwell time), and HOT water, we can produce the BEST clean possible without ever “blasting” your property with full pressure.
If you want to compare equipment from contractor the best figure to use would be GPM (gallons per minute) rather then psi (pounds per square inch). GPM will show you how effective a power washer is a rinsing in a timely matter. We don’t want any soap drying on!
Concrete is an Exception At Times
There are times where high pressure washing is fine. When cleaning concrete we will typically run tips at about 2500 to 3000 psi. Concrete is psi rated to 5000 psi typically. Our surface cleaning machines spic quickly so the water is never hitting the same spot for a long time either. Just one of many examples where having good equipment and the knowledge on how they work allow a safe clean.
To see a full overview of the type of equipment that Power Play uses, please see “The Right Equipment for the Job!”
Not trying to use a scare tactic, but I have heard stories of competitors removing siding. Also, blowing pressure tips through siding, tearing up the wood on customers decks, and the list goes on and on. Hire once, get the best clean possible, and do it all for a very fair price with Power Play.
Call Nate at 717.314.2360 or Request a FREE Estimate.