I just experienced redoing all my player valves.  Using Player Piano
Co. #692 washers doesn't work.  I should have stayed with the porous
leather type.  The patent leather seems to leak against the metal
plates.  I double-checked all the clearances and that is okay.  I have
to give Player Piano Co. a sample of what the piano was using before.
Anybody else have or had the same problem?

Gary Peterford