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September 1998

1998.09.11

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Duo-Art Pump Rumble
By Steve Greatrex

The vacuum supply on my 1922 Duo-Art is supplied by a six-lobe
or "steamboat" pump.  It sits next to the piano in a mahogany box.
I have recovered the pneumatics, flap valves and rollers and have
a good vacuum.

I have tried to isolate the pump and the motor by using a gasket, made
of neoprene sponge, between the mountings and the box.  However, I have
been unable to stop the low frequency rumble.  Can anyone offer advice?

Steve Greatrex
Plymouth. UK.

(Message sent Fri 11 Sep 1998, 08:29:03 GMT, from time zone GMT+0100.)

Key Words in Subject: Duo-Art, Pump, Rumble

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