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From: <Jsuw@ao*.co*>
Date: Mon, 23 Oct 2000 08:53:29 EDT
Subject: Ice Diving
To: <techdiver@aquanaut.com>
The way I learned to ice dive, it required a surface tender who managed the 
line.  Rope signals were used to communicate between each diver and the 
tender managing their line.  (Each diver had an individual line and tender.)  
The line was held in the hand, not tied to a harness or secured to the diver 
in a manner that might be difficult to quickly remove.  By holding it in the
hand, it was not an entanglement hazard.

I'd be reluctant to trust an unattended link to the ice such as an ice screw 
unless the ice was very solid.  Even then, I'd rather have surface support.

Other than the above, the dive would be done like any other DIR dive.  This 
means the right equipment, configuration, and attitude.

Larger clips are often used in cold water to make handling them with gloves 
easier.  Equipment considerations for ice dives include regulators that will 
perform well in cold water.  Avoid breathing from the regulator to test it on 
the surface in freezing temperatures, because the humidity in your exhalation
could cause the regulator to freeze up, and then free flow.

JS

In a message dated 10/21/00 12:07:59 PM Pacific Daylight Time,
klind@al*.ne* writes:

 That sounds like a very reasonable way to do it.

 There's plenty of frozen lakes around here (Alaska) in winter but I've
never
 gotten in to ice diving because the ocean stays ice free for the most part
 and why fuss around cutting holes in lakes when you can go dive off the
 beach and catch king crab and scallops?

 But that sounds like the way to do it.  I think I would just take the
backup
 anchor off my boat and throw it in the back of the truck and use that as
the
 drop line and leave the dry end tied off to my hitch.  I think it's 9/16"
 braided nylon.  But maybe you guys are talking about lakes that you can't
 just drive out on.

 What is the purpose of the javex jug [what is a javex jug?] Is this a
float?
 To keep the line taut?

 Kent Lind
 Juneau, Alaska

 > -----Original Message-----
 > From: Schultz, Steven [mailto:Steven.Schultz@sp*.gc*.ca*]
 > Sent: Thursday, October 19, 2000 6:15 AM
 > To: 'Matthew R Bauer'; techdiver@aquanaut.com
 > Subject: RE: Ice diving
 >
 >
 > I've done ice diving, but never DIR ice diving.  I've always done it a la
 > PADI.
 >
 > To do it DIR, keep your harness and wings the same.  The only thing that
 > needs to change to dive in ice-water is the size of your clips.  Put Big
 > bolt snaps on everything.
 >
 > Of course your regs are environmentally sealed with a low IP.
 >
 > Now comes the line laying.  I've always done this a la PADI with a pain
in
 > the butt harness and a big rope.  The way suggested to me by DIR
 > ice divers
 > is to dive it like a cave.  Instead, drop a line with a 15 lbs
 > weight on it
 > to the bottom.  Have a javex jug on the line floating in the hole, and
 > secure the "dry" end of the line to the ice with an ice screw.  Now
decend
 > the drop line, and tie your reel off and you're ice diving.
 > People who are
 > cave trained (not me) know how to do this.
 >
 > Hope that helps
 >
 > ss
 >
 > -----Original Message-----
 > From: Matthew R Bauer [mailto:laocoon@et*.or*]
 > Sent: October 16, 2000 10:50 PM
 > To: techdiver@aquanaut.com
 > Subject: Ice diving
 >
 >
 > Somebody want to give me the dir approach to ice diving?
 >
 > Matt Bauer
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