I got a sunjoe spx3000 from amazon and the mtm pf22.2 and i get GREAT thick foam. It has a lot to do with your foam cannon. If you got an electric pressure washer with lower GPM, you should install a 1.1mm orifice (which is included with the mtm pf22.2). Consider investing in a good foam cannon and a 1.1mm orifice (cheap) if you have an electric pressure washer. Also the soap can play a factor. I use Adam's megafoam and autofanatic 007 snowstorm and the foam i get is pretty crazy, on par with what you see on youtube.
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