Hee, hee, Try WI. I have a pretty advanced weather station on my property, and regularly monitor the outdoor RH (and contrast that with thin indoor). I don't have central AC in the house, but it stays much more constant than outdoors. Yesterday, the outdoor RH went from 92% at 8am, to 56% at 6pm, to 89% at 10pm. It doesn't always change this fast, or frequent, but daily fluctuations are often in the 30% range. Indoor fluctuations (running some window AC units occasionally) are more on the order of 10% - 15%. William R. Monroe On Mon, Aug 23, 2010 at 9:55 PM, Gerald Groot <tunerboy3 at comcast.net> wrote: > *You know, it all depends on the client, piano and location. By location, > I mean, what state we reside in…humidity fluctuations. Here, I can tune a > piano today and by next month (or sooner) it is already flat, or sharp, but > it is changing already because of the continual variations of temperature > and humidity. Today, the RH was 48 %. Last week when it was sweltering > hot, it was right around 80%. Tuning yearly, which I do like, I find them > on pitch and close to being in tune but if it is a piano that is used often > then obviously, we need to tune it more often. * > > * * > > *I like to say that " Michigan is a great place to live if you're a piano > tuner. The weather changes so often that you're screwed no matter what. > Today it'll rain, tomorrow we need the heat turned on, the next day, the > A/C…." * > > * * > > *Basically, I like at least a yearly tuning to keep screws tight, hammers > spaced and to catch other piddly crap before it turns into more serious > piddly crap.* > > * * > > *Jer* > * > * > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100824/f9f642c5/attachment.htm>
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