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At the show (Chris from the WKPP) had some very interesting ideas concerning light exercise while doing deco. Made a lot of sense. -----Original Message----- From: Maggie Owens <mmowens@pa*.co*> To: techdive@ea*.ne* <techdive@ea*.ne*> Cc: techdiver@aquanaut.com <techdiver@aquanaut.com> Date: Thursday, August 12, 1999 3:30 PM Subject: Re: jon line attachment to diver? >John, > >At 01:28 AM 08/12/1999 , you wrote: > Holding on to a jon line can cut circulation off. Not benificial for >transport of itsy bitsy bubbles. > >The bubbles business has occurred to me. But luckily I have two hands, so I >switch hands periodically. Most of the time, it is not necessary to grip >the line tightly -- I have a loop in the end I can just slip my fingers >through so the line doesn't just float out of my hand. > > If or when a swell pass's over head, would it matter if your depth >changes with the swell. > >It's not the swell passing over my head that I see as a problem, it's the >jerking up and down of the anchor line with the boat. > >But, if you didn't, there would only be a >slightly higher degree of pressure, not directly related to just the >water overhead but around you as well. Though bouncing your O2 is NOT a >good idea, it is unlikely that a hyperoxic siezure would accure from a >quick pull to 40 fsw. > >That's true, but I'd rather maintain a constant depth. After all, one of >the classic reasons for using stroke mix is in case you are too stupid to >be able to maintain neutral buoyancy at 20 feet. Wouldn't it stand to >reason that I would not want to rig my gear in such a way that maintaining >neutral buoyancy -- and a constant depth of 20 feet should be a problem. > >Anyhow, if a siezure where to accure I would >rather be tied in. > >Well that is a good point, however your best bet if you are trying to live >through a seizure would be to wear a full-face mask. > > The only time I've had a problem with clipping in was when I dove >with five strokes whom didn't equilize their bouyancy (drysuits) and >lifted the anchor off the bottom. Everyone was pulled to the surface. > >That must have been fun! > > I can gaurantee you that letting go of a jon line in heavy current >is a bad thing. You can not return. > >If I had to choose between letting go of the line or breaking all of my >fingers or getting smashed into the hull of the boat as it comes crashing >down while I am jerked up, I would rather let go of the jon line and then >figure out what to do. Obviously, letting go of the jon line in a heavy >current would be my last resort. In fact, I have never had to let go of the >jon line, but I would like to retain the option of doing so on an instant's >notice. Murphy applies. The day I attach the thing to myself would be the >day I needed to let go of it in a hurry. > >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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