 Re: pressure washers
It will work with cool and cold water. Warm water wears out the diaphragm. These are light duty units not designed to be used every day - so they have a life span, just like cars and humans. Eventually it will start to leak, (they all leak except the $US700 ones that can handle hot water), don't be surprised and go buy a spare. Look for a tray to put under it now rather than when it starts to leak.
500 psi will work (5 times average city water pressure) so who would tell you that 1800 wouldn't work?
Low tension mesh with vibrate like a speaker, because even the spray of water is pulsating as the internal pump, pumps.
High tension screens will stand up to the spray better than low tension mesh.
Hydro-Blaster in Utah taught the world that with tight mesh and 3,000 psi, you don't need chemicals, the spray will remove the stencil. It was a selling point that you could pay for the pressure washer lease with your chemical budget.
Properly exposed stencils melt out of the mesh when you apply stencil remover and you should, should only have to use high pressure on tough spots, if that.
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Ulano Technical Product Manager - NYC |