<HTML> <HEAD> <TITLE>Re: pin block questions</TITLE> </HEAD> <BODY> Roger, I have seen marginal success with upright pianos, but only with the interio= r installation.  The Back Side System, as Wim suggests, seems too far r= emoved to do much good. Rick on 2/23/04 2:53 PM, Wimblees@aol.com at Wimblees@aol.com wrote: <BLOCKQUOTE>In a message dated 2/23/04 2:48:06 PM Central Standard Time, ro= ger@dampp-chaser.com writes: <BLOCKQUOTE>Hi List, We have a technician who recommended our = product to a customer with a dried pinblock and doped tuning pins.  He = thought that the System would cure this situation.  He installed a Back= Side Vertical System and has obtained good pitch stability but not the affe= ct he had hoped for on the pinblock.  He is not on the internet so he a= sked me to post this to see if any of you had any suggestions.  Thank y= ou in advance for any help. Roger <B= R> </BLOCKQUOTE>While the Dampchaser system maintains stability in the = soundboard, it has virtually no effects on the pin block, especially on pin = blocks in vertical pianos. This is because the pin block is enclosed, and th= e moisture from the system doesn't get up in that area of the piano. If the = pin dope has not tightened the pins enough, I'm afraid the installation of t= he damp chaser system is not going to do the job. Willem Blees, RPT Piano tuner/technician School of Music University of Alabama </BLOCKQUOTE> _____________ Rick Florence Piano Technician Arizona State University, School of Music </BODY> </HTML>