Hello List Sorry for double-posting this query, but I know there are some of you who are not on the pianotech list... I have a private client with a grey-market Yamaha U1H. I installed a Dampp-chaser a couple of months ago, and now the client is noticing a musty/mouldy smell that seems to be coming from the piano. Also, when I went to tune the piano a month or so after installing the Dampp-chaser, I noticed some purple-coloured blotches on the humidifier pads. What I suspect has happened is that the re-introduction of moisture into the piano has re-awakened dormant mould spores that have been there since the piano was brought over from Asia. My first inclination is to remove the Dampp-chaser, but I'm wondering whether any of you have dealt with a situation like this before, and have found any other effective solutions. By the way, the client has another piano (non-grey market) in the same apartment, also with a Dampp-chaser in it, that has no problem. Thanks, Bert
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