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Date: Sat, 23 Oct 1999 06:55:41 +1000
To: "Kuiper, Greg" <GregKuiper@pa*.co*>,
     "'techdiver@aquanaut.com'"
From: Bruce Stewart <bruces@tr*.co*>
Subject: Re: Madison blue fatatlities
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In some caves here the line installed is about 6 to 8 mm and has in some cases
has been
in place for years with only minor abrasion, this depends on how its rigged of
course.

Maybe replace the line with something a little more abrasion resistant and
thicker in the
tight areas or where the line cops a beating.



At 08:27 22/10/99 -0700, Kuiper, Greg wrote: 

>
> List, 
> The recent fatatlities at Madison Blue have made me reflect on cave and wreck
> situations I have been in where if the line had broken I would have had
> similar problems.  How many of you have gone through tight restrictions in
> tanninc or fine clay/limestone silt where you couldn't see jack squat?  I
> know I have and what a pain it the ass it would be to all of a sudden run out
> of line on the exiting portion of a cave dive.  I was taught to take my
> safety reel, tie off to the end of the line and go in search of the other
> end.  I can think of many spots I have been in where that could be almost
> impossible due to current blowing the line downstream or multiple possible
> routes through a zero visiblity area.  It is also a pain in the ass to find
> broken cave line amongst stalagmites in a zero vis environment.
>
> Cave line is tough, but after reading about the recent unfortunate accident
> at Madison Blue and all the broken cave line that USCDT found in Wakulla it
> makes me realize that it might be smart to run your own line through certain
> areas where a broken line could mean life or death.
>
> I don't mean every single tight place where there could be zero visibility,
> but in those areas where there could be multiple paths and only one leads to
> the exit.
>
> An anology that springs to mind is from when I used to rock climb.  Most
> American climbers use one thick rope for their climb where many of the
> European climbers I used to know would use two ropes at a time for their
> ascent in case one failed.
>
> In a life threatening environment like caves I don't think it would be a bad
> idea to run a separate line on top of the already existing cave line in the
> appropriate places.  The divers at Madison blue might be alive today if they
> had tried that.
>
> Dive safe everybody, 
> Greg Kuiper 



Bruce Stewart                    __--__|\
bruce@tr*.co*       /            \
www.triton-dive.com           \__.---.__/  < --about here
                                                   v


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<html>
In some caves here the line installed is about 6 to 8 mm and has in some
cases has been<br>
in place for years with only minor abrasion, this depends on how its
rigged of course.<br>
<br>
Maybe replace the line with something a little more abrasion resistant
and thicker in the<br>
tight areas or where the line cops a beating.<br>
<br>
<br>
<br>
At 08:27 22/10/99 -0700, Kuiper, Greg wrote: <br>
<br>
<font size=2><blockquote type=cite cite>List,</font> <br>
<font size=2>The recent fatatlities at Madison Blue have made me reflect
on cave and wreck situations I have been in where if the line had broken
I would have had similar problems.  How many of you have gone
through tight restrictions in tanninc or fine clay/limestone silt where
you couldn't see jack squat?  I know I have and what a pain it the
ass it would be to all of a sudden run out of line on the exiting portion
of a cave dive.  I was taught to take my safety reel, tie off to the
end of the line and go in search of the other end.  I can think of
many spots I have been in where that could be almost impossible due to
current blowing the line downstream or multiple possible routes through a
zero visiblity area.  It is also a pain in the ass to find broken
cave line amongst stalagmites in a zero vis environment.<br>
</font><br>
Cave line is tough, but after reading about the recent unfortunate
accident at Madison Blue and all the broken cave line that USCDT found in
Wakulla it makes me realize that it might be smart to run your own line
through certain areas where a broken line could mean life or death.<br>
<br>
I don't mean every single tight place where there could be zero
visibility, but in those areas where there could be multiple paths and
only one leads to the exit.<br>
<br>
An anology that springs to mind is from when I used to rock climb. 
Most American climbers use one thick rope for their climb where many of
the European climbers I used to know would use two ropes at a time for
their ascent in case one failed.<br>
<br>
In a life threatening environment like caves I don't think it would be a
bad idea to run a separate line on top of the already existing cave line
in the appropriate places.  The divers at Madison blue might be
alive today if they had tried that.<br>
<br>
Dive safe everybody, <br>
<font size=2>Greg Kuiper</font> </blockquote><br>
<br>
<div>Bruce
Stewart            &
nbsp;      
__--__|\</div>
<div>bruce@tr*.co*      
/           
\</div>
<div><a href="http://www.triton-dive.com/"
EUDORA=AUTOURL>www.triton-dive.com</a>      &nb
sp;   
\__.---.__/  < --about here</div>
<div>            
             &n
bsp;            &nbs
p;           
v</div>
<br>
</html>

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