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To: techdiver@opal.com
Subject: Re: Wreck Diving Help
From: Gordon Henderson <Gordon.Henderson@me*.co*>
Date: Mon, 4 Jul 1994 14:05:00 -0400 (EDT)
On Mon, 4 Jul 1994, Alan Wright wrote:

> Putting a strobe on the line is normal practice for me. Our viz is
> so poor and the wrecks large enough that very often we find it
> difficult to locate the shot/anchor line even when it is on the
> wreck. We also use them at hatches and bulkheads when looking round
> the wreck.
> 
> [ And now Gordon or Stuart is going to remind me that I didn't do
> this when they were visiting - and look what happened then :-) ]

Well, you do what I did and you calmly get out your delayed surface 
marker bouy (in my case, a 90lb lift bag), clip in onto your reel,
one third fill it with air (depth >30m) and let it go! Then you just
leisurely wind yourself up the line and at about 20m when the vis
clears up a bit, you look about and see their bubbles & fin over to them!

I always carry a reel & DSMB on wreck dives. Luckily, most of the diving
that I do is in reasobably still water. Another thing that I've noticed is
that in general (my observations) dive boats in the US like to anchor,
whereas, in the UK we drop a shot line & have the dive boat free to roam,
(possibly, attached to the shot line, but with the ability to ditch the
shot line & leave a large bouy on it at a seconds notice) picking up
divers who may drift off the wreck on DSMBs. 

Gordon

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