Hi Greg, There is some benefit to a grand DC system without the covers. It's much better to use them, and I will no longer install a system without the bottom cover. At 03:56 PM 2/18/2008 -0500, you wrote: >Don, > I believe the results are conditional upon the string cover and/or >bottom cover not better with them. > >Greg Newell >Greg's Piano Forté >www.gregspianoforte.com >216-226-3791 (office) >216-470-8634 (mobile) > >-----Original Message----- >From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf >Of Don >Sent: Monday, February 18, 2008 2:40 PM >To: Pianotech List >Subject: RE: rusted piano strings > >Hi Greg, > >from: http://unieke.com/Unieke%20Nov%201/fq.htm > >"The higher the temperature the faster the rusting (corrosion and >oxidization of metal) occurs. Rule of 75: 75 degrees + 75 % Relative >Humidity = Accelerated Corrosion" > >As the DC system is set to 42% RH it will affect rust by slowing down the >process by lowering the RH. It will work better with bottom cover and >string cover. > >At 02:15 PM 2/18/2008 -0500, you wrote: >>Mark, >> I disagree. I do not believe that the addition of a Dampp-Chaser >>system would have the effect you wished for. What makes you believe that it >>would? It's hung under the soundboard, the strings are above, with only >nose >>bolt holes to allow conditioned air to waft upwards. >> >>Greg Newell >Regards, >Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. >Non calor sed umor est qui nobis incommodat > >mailto:pianotuna at yahoo.com http://us.geocities.com/drpt1948/ > >3004 Grant Rd. REGINA, SK, S4S 5G7 >306-539-0716 or 1-888-29t-uner > > > > >-- >No virus found in this incoming message. >Checked by AVG Free Edition. >Version: 7.5.516 / Virus Database: 269.20.7/1285 - Release Date: 2/18/2008 5:50 AM > > Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna at yahoo.com http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK, S4S 5G7 306-539-0716 or 1-888-29t-uner
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