[pianotech] What equipment for soda blasting?

[Euphonious Thumpe]

Saw a great video of a tech (on youtube) soda blasting (with normal household baking soda) action parts. It looked like fun, so when I was near Harbor Freight today, moseyed on in and  bought a cheap ($15) blast gun with a small tank on top. (Oddly, the package said it uses 1.7 CFM at 90 PSI, although the very same model#,
but now in a box-- not a plastipak-- said 6CFM at 90 PSI. Go figger!) I only have a 5 gallon, I-don't-know-how-many-CFMs compressor, currently, so would like some advice on what all to use.

Thanks!
Thumpe

P.S. I also saw a great youtube vid on how, for just a very few $, to modify HF's Cheapo ($13) purple HVLP gun, so that it works as well as a costly DeVilbiss! (Dedicated plate gun, here I come!)
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