I saw a similar situation in a church piano. After investigating, I discovered the custodian was "saving money" by using hardware store-type dehumidifier additive (the kind that Dampp-Chaser warns about - evidently containing some sort of acid). The pins and strings were rusty, and the Dampp-Chaser itself was so rusty that when I inspected it, the metal parts just crumbled. This was a very old unit (the kind with the one orange light), but I'm sure the same could happen on a newer unit as well. > I have a new customer with a Kawai RX-3 equipped with a Dampp Chaser with > the model H-4 controller. The piano is about 3 years old. As I opened the > lid to tune, I noticed rust on the tenor strings, and as looked closer, all > of the bass strings had discolored from what seems to be a serious humidity > problem. There was rust on almost all of the strings, and the tuning pins > had discolored in the bass section. > > all of the plated steel brackets were > rusted along with all of the screws used to hold the wiring. Even the steel > rod (that goes through the soundboard) from the bottom was totally rusted. > Even the brass cap was discolored. - John Radley -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20081013/3a375c14/attachment.html
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