<HTML><FONT FACE=arial,helvetica><FONT SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Another issue not yet mentioned is that the silicone "plunger" valve will swell over time with normal use (just as the diaphragm will soften) and not work properly. If it looks significantly larger than a new part, replace it.<BR>
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Earl</FONT></HTML>