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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Wow, what a leap of logic…. One piano has the problem, so Kawai is no longer a reliable source for good quality parts? Maybe that’s not what was intended by this post, but that how it reads to me. With the many thousands of pianos that have NOT had this problem, and considering that this piano is 25 or more years old, it doesn’t seem that blaming the manufacturer is a very reasonable conclusion.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Besides the gunk on the strings, the ringing problem can be caused by the dampers being mounted too low. So a little experimentation with locating the new dampers would be a good idea.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Don Mannino<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] <b>On Behalf Of </b>Patrick Poulson<br><b>Sent:</b> Tuesday, March 01, 2011 10:02 AM<br><b>To:</b> pianotech@ptg.org<br><b>Subject:</b> Re: [pianotech] Echo Issue<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p><span style='font-family:"Arial","sans-serif"'>Hi Matthew: My guess is that there is some chemical in the damper felt that is interacting with the copper windings and leaving the black residue in the felt as well as on the string. The appropriate solution would seem to be replacement of the felts with material from a reliable source. i.e., not Kawai. Also clean the strings with naptha or some other light solvent as thoroughly as possible.<o:p></o:p></span></p><p><span style='font-family:"Arial","sans-serif"'>Patrick <o:p></o:p></span></p></div></div></body></html>