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If you guys are so concerned about O2 tox, what would you do in this real life scenario ? This actually happened when we were in Croatia diving a few months back. The first diving choice was blown off, so this was the back-up site: 1. Diving off an underwater pinnacle with the sea floor at 70m rising to the highest point at ~7.5m underwater. 2. Drift deco not possible (for whatever reason: shipping lane, no chase boat, etc.). 3. Boat anchor sways so much that a 10-ft Jon line still wouldn't work. 4. Current goes over the top of the pinnacle require constant moderate swimming the whole deco to stay *in place* at 6m or less. Question: Would you... A. Go lay on the top of the pinnacle at ~7 - 7.5m to deco on 100% at rest, or B. Swim in place at 6m at moderate work load to deco on 100% ? I am curious as what others would do. And to force a choice between A and B, let's say you can't deco on deep deco mix (50%) or bottom mix. -Phi -----Original Message----- From: Paul Braunbehrens [mailto:Bakalite@ba*.co*] Sent: Wednesday, June 07, 2000 7:33 AM To: techdiver@aquanaut.com Subject: Re: Oxygen Toxicity - using 100% in open water Dave, thanks for the reply! At what point do you worry that O2 is going to kill you? How closely do you monitor your depth? When I'm doing my 3 minute safety I like to stay between 10 and 18 feet. However, it does happen that I drop to 22 feet on occasion. Granted, I'm not hyper concerned with my depth, and maybe I'm drifting because I'm bored and fiddling with gear or looking at fish...but it does happen. My concern is mainly that if this happens with O2, will you tox, or do you have a reasonable leeway? I just ordered a spool, a sausage and a float, and I did make a Jonline, so I'll start to practice some of that stuff in anticipation of getting some more training. I'm thinking about a reel as well, but I'm not sure which one to get. BTW, when you do a hang from your float, do you have a weight attached to the float? Sorry for all the questions, I'm jumping the gun a bit, I probably wont have a chance to try any of this out until August anyway. Cheers. David Chamberlin wrote: ~ >Paul, > >I agree with Dave. You know I dive the same conditions you do since >we're on the boat together a lot and you know I dive with an O2 bottle. >I think you'll find that as long as you're not hanging directly on the >anchor line, maintaining a given depth, even in rough conditions is not >that tough. > >Next time the swells are up (almost every weekend...:-) try doing a >20FSW stop, monitoring your gauge. And rig up a jon-line. Just watch out if you're hooked in to the anchor line -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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