Loose Pin Therapy

[Mark Bolsius]

Not sure I can agree with you Carolyn. In my area, summer produces RH of as
low as single digits, but averaging daytimes at around 30%, going up to as
high as 85-90% at night!
Pinblock problems here are usually terminal.
Can I pose a supplementary question to the list?
When the loose pins form a relatively straight line, wouldn't that indicate
a grain weakness rendering the pinblock unsalvageable? "Therapy" in this
situation would be difficult to guarantee. Oversize pins run the extreme
risk of actually creating a crack that wasn't quite there yet, I'm afraid I
don't hold (sorry, couldn't resist it) with products like Pin-Tite, and
shimming holes (especially when there are quite few of them, doesn't appeal
much either. A new plank would be the order of the day (not that you'd
justify it on PSO or rock-crusher type upright).

Rambling type question here, but I'm interested in your thoughts.
----------
From: burgess macneal <burmaudi@swva.net>
To: pianotech@ptg.org
Subject: Loose Pin Therapy
Date: Mon, 22 Feb 1999 11:31 PM

<snip>
Therapy is to leave lid
open for three summers... starting in May, ending when heat is first
turned on in Fall.  Pin block will really improve after three summers.
Natch, there's a caution that filling the piano case with humid air has
bad side effects not good for piano or tuning... and here's another
opportunity to sell a Dampp Chaser.
<snip>
Carolyn Macneal
RPT2B - PTG Roanoke Chapter