Geoff, What you are seeing is a reaction to the humidity, proximity to the ocean, and very likely large swings in temperature in the room. Install a string cover, perhaps add heating elements or change to higher wattage, and the problem will stop. The older, weak strings will remain, though, so some could still break. Don Mannino RPT At 02:13 PM 4/22/2005, you wrote: >Greetings all -- > >About a year ago I replaced an old rusted out DC system in a clients grand >with a complete new system and control box. The water tank support rails >had literally rusted away and the tank had fallen out. Did I say it was >old? Anyway, at the same time I also replaced two broken strings up in the >high treble. The entire piano was on the rusty side and my guess is that >age along with rust had caused these two strings to break. > >On a return visit last weekend I found another string up in the high >treble had broken. I also noticed increased signs of rust, most notably on >the new strings I had replaced only a year ago. > >The client lives in Los Angeles about three miles from the beach. She >tends to be cold most of the time so the forced air heating system runs a >lot. While the vent in the piano room is blocked, there is a sliding glass >door that is infrequently open leading to the outside. All in all not what >I would call an environment that would be rust promoting. > >Could the DC system be causing the rust? I'm open to suggestions. > >-- Geoff Sykes >Associate Member >Los Angeles Chapter >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives
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