There are THREE key pressure washer ratings that you need to keep in mind while you're selecting a pressure washer. These ratings will greatly help you compare models - to choose the one that's right for YOU!
So here's a handy primer of the these three ratings, for your review:
PSI, or POUNDS PER SQUARE INCH, is a number used to define the force of the water that the pressure washer is able to produce. The higher the PSI, the more cleaning power.
For example, your regular garden hose produces a PSI of about 40. But pressure washers can produce PSI's of 1,500 to 4,000+. (For the typical homeowner/DIY'er use, I would recommend purchasing a pressure washer with a minimum of 2,250 PSI.)
And you can check out my top gas pressure washer recommendation: the Generac 6596 on Amazon.
GPM, or GALLONS PER MINUTE, is the rate of the water flow. Or, how much water a pressure washer uses within a minute of running time. Combined with the PSI rating, the GPM is an important indicator of the cleaning effectiveness of a pressure washer.
CPU, or CLEANING POWER UNIT, defines a pressure washer’s total cleaning power. CPU is calculated by multiplying the PSI by the GPM. A higher the CPU number indicated that the pressure washer will clean better, faster and more efficiently than models with a lower CPU.
My #1 best gas washer recommendation is the Generac 6596 washer that's available on Amazon.
Hands-down, it's my top all-around best gas washer choice. It has a quality Generac engine, an axial cam pump you can count on and it'll give you 2,800 PSI and 2.5 GPM. This Generac gas pressure washer has the kind of power that will easily tackle any home or yard cleaning project you have.
And this Generac 6596 also has Never Flat tires, which I love. No more flat tire hassles!
You can check Amazons price on this recommended Generac 6596 pressure washer.
These three key ratings will greatly help you compare and choose your new pressure washer.