I should have listened more carefully to the 6
spray applicators at the ICTC this weekend! The pressure is one issue and they
can withstand quite a bit. The real killing is in the impact velocity. It
has to be gentle so whatever pressure you use, you have to develop a technique
so the water droplets parachute down on to their surfaces..or up as the case may
be......I am sure others have exact numbers.
Cheers,
Jeff
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