The higher your GPM, the larger number nozzle you should use
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Product QuestionsAnswered by Jim, the Pressure Washer Expert
I've got a 3000PSI 3GPM unit and I would like to use the unit as a wet sodablaster. What would be the best suited tip. And do you have any suggestion as to the PSI I should be running the unit at? I will be cleaning rough concrete of stains & paint. And an open grille aluminum roll up door.
Dru
from
September 29, 2011
Answer
You would want to use the .03 or .04 nozzle size with this sandblasting kit in conjuction with your pressure washer. I would suggest running your pressure washer at full 3000 psi especially when cleaning the concrete surface. You will more than likely want to lower the pressure down to about 2500 psi when cleaning the aluminum door you mentioned. I would suggest starting at a lower psi and see what amount of pressure performs well.
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