sluggish action

[jason kanter]

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80 proof vodka is 40% alcohol. 100 proof is 50% alcohol.
  -----Original Message-----
  From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
Behalf Of David Ilvedson
  Sent: Sunday, February 27, 2005 11:12 AM
  To: pianotech@ptg.org
  Subject: Re: sluggish action


  I like the vodka idea.   Does anyone know what the ratio is of alcohol to
water?   I have a sluggish damper system to deal with this week.   I've
tried Goose & Protek but it doesn't last, so I'm going to try alchol/water.
I suppose hair dryer would be helpful but I imagine it will wreck havoc with
the tuning...maybe just the air moving no heat?   If I'm making it up
myself, what is the ratio of alcohol to water?   1 part water to 5 parts
alcohol.

  David Ilvedson






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--
  Original message
  From: tom driscoll
  To: Pianotech
  Received: Sun, 27 Feb 2005 13:35:42 -0500
  Subject: Re: sluggish action



    ----- Original Message -----
    From: Alpha88x@aol.com
    To: pianotech@ptg.org
    Sent: Sunday, February 27, 2005 1:03 PM
    Subject: Re: sluggish action


    Greetings,

           In addition to the other fine suggestions... Is the piano in a
moist basement? ..or has it been recently moved from a moist place into a
home? If recently moved from a moist place(baseement or garage) into a home,
then in a coulple weeks the moistrue will dry out of the bushings a it sits
in the heated house and everything will return to normal by drying allittle.

        If not, then the bushings of either the jack or the hammer are
swollen and need a shot of 5% to 10% alchohol to H2O(water). There are
disputes on the percentage of water to alchohol and the TYPE of alchohol. I
do about 10% alc to H20 and the alchohol is isopropyl, because I cant get
Ethyl anymore. Works for my customers, fine.

    Julia
    Reading, PA


    Julia,
        Not my experiece-- When they get sluggish (as in the classic
Acrosonic sluggish ) thay will stay sluggish in the Sahara .
        I see Acros in January here in the northeast @ 20% RH .as sluggish
as can be.

        I do agree -- Alc., Water to shrink ,and or protek will usually
work.
        I just don't see swollen action center bushings "retreating" to
normal without help.perhaps your experience is different.
        As an aside, you can jump through all kinds of hoops trying to get
certain types of alc. but the cheapest vodka at the packy works great--Just
don't bring it in the ladies house still  in the bottle-- the neighbors
might talk! Percentages ? Heck the stuff is alcohol and water and is clear .
I think we sometimes get too carried away with exactitude with this kind of
thing. The alc. brings the water to the cloth and the bushing will shrink.
        JMHO,
        Tom Driscoll RPT

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