An air compressor works fine, does not have to be industrial deisal fired one, small electric ones work too!
Also, a shop vac is what I use, and put the hose on the blow side.
Using water would work, but is a lot more trouble and time. I would prefer to just swab difficult areas with qtip and an alchohol/h2o mix.
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And the sign says "You got to have a membership card to get inside" Huh
So I got me a pen and paper And I made up my own little sign</pre><p></font color=red>