I don't know what it costs to fill one, but
SCUBA tanks are very good sources of clean dry compressed air
(if you get them refilled by a proper filler).
I remember hearing about people who used them (when I first started airbrushing).
The only concern I would have is the limited tank supply.
For many fine artists and Illustrators, who use the airbrush sparingly in their artwork,
this could be a super silent method of supplying compressed air.
But the way I airbrush, I'd drain the tank pretty fast!
Yeah, I've had these arguments on airbrush forums (about spending money on cheaper equipment)
and I always come back to the same complaints I get from students and novices.
A lot of which could be solved if better tools were used in the first place.
But at the same time, I respect the fact that we (me included) are not made of money,
and I too, am always on the lookout for a good deal or a cheaper alternative.
Sorry for jumping on your post Hathaway.
Didn't mean to attack you personally.
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