tuning with Dampp-Chaser

[Farrell]

Don Rose often mentions the new covers for the backs of uprights and the bottoms of grands. I have never installed one of these, but I can easily imagine that they would do wonders for isolating the environment of the soundboard back from the rest of the room. I have no doubt a back/bottom cover will dramatically increase the effectiveness of a good DC installation.

Terry Farrell
  
----- Original Message ----- 
From: "Charles Neuman" <piano@charlesneuman.net>
To: <pianotech@ptg.org>
Sent: Sunday, March 24, 2002 6:34 PM
Subject: Re: tuning with Dampp-Chaser


> > From: "Farrell" <mfarrel2@tampabay.rr.com>:
> > Just one thought Charles. If you are using one of the little $30
> > hygrometers out there, I would not attach too much significance...
> 
> Good point. I have to remind myself that 39% or 45% might all refer to an
> actual RH of 42%. So I try not take it too seriously. If I really wanted
> concrete data, I'd have several sensors placed in different parts of the
> piano, logging the RH every 5 minutes or so. Since I don't want to go that
> far, I'm throwing in a little intuition into the picture, by generally
> "getting a feel" for what's going on, based on how I've seen things
> behave. One thing I've learned is that there are tons of variables.
> 
> As for drafts, there are no real drafts like you'd get from a window that
> has a leak, but there are large volumes of air that move around in the
> room due to temperature changes and open doors, etc. That's probaly worse
> than a draft, even. And I have the piano around 6" from the wall, so lots
> of air can move behind it, taking the soundboard's precious humidity with
> it.
> 
> I only have a short while left of this dry weather, so I want to wrap this
> up before the humid weather comes with new challenges for me!
> 
> Charles
> 
>