Just wanted to say thanks for the information several members provided
about how to remove and repair the pump on my Weber Duo-Art grand
piano.  This project was not nearly as difficult as I had built it up
to be in my mind.  I followed the advise provided here and in no time
with little effort I had the pump out, repaired, and reinstalled.

Thanks,
Robert M. Soule, III
http://home.highertech.net/~soule/