I need a blower suitable for a band organ of about 200 pipes.  The
organs regulated pressure will be 7" to 8" water column (WC).  I have
a surplus three-stage blower of nominal 1/2 horsepower size that is
rated at approximately 140 cubic feet per minute (CFM) at 14" WC.
I think this one will work, but if someone can confirm or reject it
based on its suitability for the job, I'd be most appreciative.

Dave Vincent