<HTML><HEAD> <META charset=US-ASCII http-equiv=Content-Type content="text/html; charset=US-ASCII"> <META content="MSHTML 6.00.2800.1106" name=GENERATOR></HEAD> <BODY style="FONT-SIZE: 12pt; FONT-FAMILY: Arial; BACKGROUND-COLOR: #ffffff"> <DIV> <DIV>In a message dated 11/29/2006 8:47:16 PM Pacific Standard Time, davidlovepianos@comcast.net writes:</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">Perchloroethylene (PERC or dry cleaning fluid) seems to work but it is considered a highly toxic substance. </SPAN></FONT></BLOCKQUOTE></DIV> <DIV><FONT face="Bookman Old Style">I have tried perchlorethylene (and many other solvents) by rinsing, soaking, blowing, and agitating in an ultrasonic cleaner. The centers </FONT></DIV> <DIV><FONT face="Bookman Old Style">1) get looser</FONT></DIV> <DIV><FONT face="Bookman Old Style">2) never feel right and </FONT></DIV> <DIV><FONT face="Bookman Old Style">3) ALWAYS tighten back up. Sooner or later, but always.</FONT></DIV> <DIV><FONT face="Bookman Old Style"></FONT> </DIV> <DIV><FONT face="Bookman Old Style">I no longer want to spend the client's money to combine effort with risk, and just chuck the parts.</FONT></DIV> <DIV> </DIV> <DIV><FONT color=#0000ff>from Wikipedia:  In the early </FONT><A title="20th century" href="http://en.wikipedia.org/wiki/20th_century">20th century</A><FONT color=#0000ff>, [perchlorethylene] was the most effective available treatment for </FONT><A title=Hookworm href="http://en.wikipedia.org/wiki/Hookworm">hookworm</A><FONT color=#0000ff>.  [Mmm, tasty....]</FONT></DIV> <DIV><FONT color=#0000ff></FONT> </DIV> <DIV><FONT face="Bookman Old Style" color=#400040>Bob Davis</FONT></DIV> <DIV><FONT face="Bookman Old Style"></FONT> </DIV></BODY></HTML>