Piano Warrenty/False Beats

[David Ilvedson, RPT]

Question:  I service a Ballet Company with numerous studios.  The floors are
mopped nearly every night and the heat is high during classes.  Will a
damp-chaser have any hope in those conditions?

David I.

----- Original Message -----
From: "jolly roger" <baldyam@sk.sympatico.ca>
To: <pianotech@ptg.org>
Sent: Monday, January 15, 2001 7:27 AM
Subject: Re: Re: Piano Warrenty/False Beats


> At 11:16 PM 1/14/01 -0600, you wrote:
> >>120 watts. Humidistat (regular calibration - turn on & off around 65%
RH).
> >>No humidifier.
> >>
> >>The DC system will only help to minimize shrinking & swelling of the
bridge
> >>& cap. I don't think the DC system caused any problem. I think it is a
> >>materials and/or workmanship defect.
> >>
> >>Terry Farrell
> >
> Hi Terry,
>              DC systems do a great job of stabalizing the board and rim
> structure.  I don't think they make any difference to the bridge and
> action.  The moisture is concentrated only at the bottom of the board. We
> have installed them on all of our University grands, and gained some
> improvement in tuning stability, but no improvement in other areas.
Hammers
> still go mellow in the spring. Vertical installation is another story,
they
> are very effective.  In winter I can place a digital humidity gauge on the
> beam and read about 35% , place it on the plate and it will bottom out at
10%.
> Yes 10%, a steam heated building for a music dept. Now I can not think of
a
> worst enviroment for musical instruments. Summer time it averages 50-60%
> with AC runing. Some spikes of 75% on a rainy day.
> The performance pianos have water proof tarps fitted to the floor, there
> seems to be a bigger improvement in overall stability. FWIW.
> Just my 2c
> Tap and CA the pins and move on. I doubt you will get any relief from the
mfg.
> Roger
>
>