Hi Keith, It was on a grand piano. The soundboard cracked. It had been plugged in backwards for many years. I always check each installation. The other occasion was when a (former) client purchased *just* a humidifier with no humidistat and plugged it it. The bridge on a Yamaha U1D developed hair line cracks and the wippen center pins began to "waltz" out of place. This of course was NOT a complete system. The strings didn't seem to be rusty. At 02:39 PM 07/07/2001 -0500, you wrote: >>>I have on occasion come across a DC system where the humidifier was plugged >>into the dehumidifying outlet. This and the opposite *can* cause damage... >>Don Rose... > >Don, List, > >Can you cite specific damage that you have personally observed/experienced >where a complete Dampp-Chaser system was hooked up the way you describe, >please, and the approximate length of time it took for the damage to occur? > >Keith McGavern >Registered Piano Technician >Oklahoma Chapter 731 >Piano Technicians Guild >USA > > > > Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T. Tuner for the Saskatchewan Centre of the Arts mailto:drose@dlcwest.com http://donrose.xoasis.com/ 3004 Grant Rd. REGINA, SK S4S 5G7 306-352-3620 or 1-888-29t-uner
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