John,
Used to deal with this problem all the time when I was a lab techie.
You will need to have a thermos bottle, some dry-ice and some methanol.
Carefully place the dry-ice and methanol into the thermos bottle and wait
till it chills down (about 10 minutes). Place the thermometer, bulb first
into the chilled liquid. The extreme cold (about -65 F) will draw all of the
spirit or mercury down into the bulb where it will recombine and remove your
break in the column. Remove from liquid and you are done.
Charlie Geilfuss
-----Original Message-----
From: John Wheeler [mailto:wheelej@xxxxxxxxxxxxxxx]
Sent: Saturday, February 21, 2004 8:41 PM
To: The Zuikoholics
Subject: [OM] OT Darkroom Thermometer
G'day Zuiks,
Having been inspired by Graham's weekly B&W shots to once again start
processing in my darkroom (sometimes referred to as the SO's laundry) I've
discovered that my Paterson thermometer has a problem. The spirit has
divided itself and a smallish amount has got stuck in the top of the device
rendering the thing rather inaccurate. Before I chuck it and have to spend
actual money for another has anyone got an idea how I can join up the two
sections of spirit again?
John.
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