I too am interested in this question as well what tech diver recommends as a
second stage for ice diving. A few of us tried an ice dive this afternoon
and everyone experienced some sort of equipment failure. Many brands were
present: Oceanic, Poseidon, Scuba Pro to name a few. All of them free-flowed
like there was no tomorrow. It could be that the air temperature had
something to do with it (2 degrees fahrenheit, and -20 with windchill), but
my guess is that there has to be something that will work in the cold
climates and under these air temperatures. Any advice would be greatly
appreciated.

-Matt Schultz


-----Original Message-----
From: Chriss_Ludin@pc*.gc*.ca* [mailto:Chriss_Ludin@pc*.gc*.ca*]
Sent: Friday, February 16, 2001 10:02 AM
To: techdiver@aq*.co*; wreckdiver@aquanaut.com
Subject: cold water regulators


Our section is in the process of selecting new regulators for use by our
archaeologists. These guys will be periodically exposed to -2 degree
centigrade
water, arctic variety ambient air temp. and depths to 40 m. in isolated
areas.
The reg will be used in a Cressi full-face mask. We're looking for a reg
with a
dry seal first stage, freeze-up resistant second stage, high air output at
depth, good parts availability and a decent reputation. Any preferred
manufacturers or dealers? These regs may only get 200 or so hours per season
but
they will get beat up.

We'd be interested in hearing some recommendations particularly from those
regularly diving any part of the Arctic, Great Lakes, under the ice and, of
course, from those with years of experience.

Chriss Ludin
Underwater Archaeology Technician
Parks Canada


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