rusted piano strings

[David Ilvedson]

I much prefer the name "swamp cooler" though...kind of romantic...

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: "paul bruesch" <paul at bruesch.net>
To: "Pianotech List" <pianotech at ptg.org>
Received: 2/19/2008 6:45:39 AM
Subject: Re: rusted piano strings


>"Swamp coolers" are more accurately called "evaporative coolers." They
>are about a 2-foot cube with sides of a filter material. Water drips
>thru the filters and a squirrel cage fan draws hot, DRY outside air
>thru the wet filters. The water evaporates, and in doing so it expands
>and cools (or cools and expands).

>The only place I've ever seen them was in Amarillo, TX which is high
>(and quite hot and very arid) desert (and there's no trees and it's
>not the sort of place I enjoy living!) They don't work in areas of
>higher humidity AFAIK. That was before I tuned (or played) pianos so I
>didn't have a humidity gauge at the time so I don't know what the
>resulting indoor humidity was, but in those conditions I can't imagine
>that it was even 40%... but I could possibly be very very wrong.

>Paul Bruesch
>Stillwater, MN (where this morning's -8F ain't much better!)

>On Feb 19, 2008 8:07 AM, Farrell <mfarrel2 at tampabay.rr.com> wrote:

>> I think they are more common in other areas of the country, but I had one
>> church that had one of those "swamp coolers" AC - I don't really know much
>> about them, except that not only do the cool the air, but they also raise
>> the humidity to horribly high levels.