Mailing List Archive Mailing List Archive
I suspect that I am also finding the Oxygen narcotic. Unfortunately, in South Africa, Helium is relatively expensive almost double the EE you posted. That is no excuse for not diving the correct mix, however, I dont want to add more helium than I need to. Do you have any rules of thumb or formulas for calculating AED's ? As I said in an earlier post, different deco software programs seem to use different formulas ? ----- Original Message ----- From: <kirvine@sa*.ne*> To: Simon Murray <simonm@ho*.co*.za*> Cc: Tech Diver <techdiver@aquanaut.com> Sent: Monday, December 13, 1999 3:28 PM Subject: Re: My Dive this weekend an "Air" thing > Simon, to make it worse, the geniuses at the training agencies teach > nitrox to this depth. I feel so badly for the poor guys who have to deal > with these people. Finally now there is an alternative - GUE. > > > Simon Murray wrote: > > > > George, > > > > Two weeks ago I showed myself, first hand, just how insidious narcosis can > > be. We were diving an area of a flooded mine at 36m (118ft). I had arrived > > late and wasn't able to arrange the mix I have used in the past (28/10) and, > > stupidly, decided to dive Nitrox 28. As I hit the 36m level, I could feel a > > slight narcosis buzz. > > > > About halfway through the dive, we were exploring a side tunnel that had an > > alcove in it with a 45-degree shaft in the floor joining it to the level > > below. I went in to the alcove, looked down the incline shaft and then > > began to slowly turn around in the tight space. While I was turning, I > > stirred up a little silt and simultaneously sank a few meters into the > > shaft. To say the least, it was a big surprise not to see my buddies or the > > line (only empty passage in the level below) I was now at 39m (128ft). It > > felt like I long while before I realised what had happened and re-traced my > > steps- to find my buddy waiting. > > > > The whole incident took, perhaps, 30 seconds, but I am quite sure it would > > not have happened if I had been diving the correct mix. > > > > Simon > > > > ----- Original Message ----- > > From: <kirvine@sa*.ne*> > > To: techdiver <techdiver@aquanaut.com> > > Cc: <wkpp@eg*.op*.co*> > > Sent: Sunday, December 12, 1999 3:35 PM > > Subject: My Dive this weekend an "Air" thing > > > > > I did a dive yesterday that really opened my eyes on this air issue. > > > It was the 300 for 42 that I discussed the deco on before. > > > > > > I was mixed in my stage and on my back with 11% oxygen , 60% helium > > > trimix. I was diving D Tunnel of Wakulla, a clear tunnel , with Casey > > > McKinlay and Barry Miller - both long time dive partners. I know the > > > tunnel, so do they - a comfortable dive. > > > > > > The dive plan was to go thorugh A to D, switch to backgas but keeping > > > the stages for the video effect, turn on the video lights, and go the > > > the last room , filming each area as we went. It was a beautiful dive. > > > At about 2600 feet in we found the spot where Exley and DeLoach had lost > > > a scooter and De Loach was towing Exley. Sheck's compass strap had got > > > caught in the Aquazepp prop and it ripped it from his wrist. Exley ended > > > up swimming all the way out by himself - an amazing feat that took all > > > of his gas plus five safety bottles. > > > > > > We found that compass on the floor and videoed it, with me picking it > > > up and holding it to the camera lens and then putting it back. I had no > > > trouble doing this cleanly and steadily at 306 feet. By the way this is > > > one of the best videos we have ever made. > > > > > > We then came across some ridiculous cluster that the usct had had, > > > with a line run over a bridge in the cave to the roof and back down and > > > then cut off and left flapping in the breeze. We wondered what kind of > > > panicky screwup that was about. No problem , knew what that was right > > > away and it did not throw us off at all. > > > > > > Moving on we got the the last horizontal room ( then there is a > > > vertical room with a 100 foot rise but we did not want to get into that > > > ). The second to last room is spectacular, white walled with blue water > > > and quite large. Barry moved a little off the line into the room with > > > his camera, I moved sideways to the middle, and Casey went all around > > > the room with his video light) . > > > > > > I had my back to Barry, but could see his steady bright video lights , > > > and my back to the line, concentrating on lighting in the direction of > > > Casey. Unknown to me, three other WKPP divers had scootered past us > > > behind me towards the last room. Casey signalled to us to wrap it up, > > > and I stowed my video head and turned the canister off. > > > > > > But I was still all lit up. I then tried to turn it "off" again. It > > > went back on instead. I then turned it off again, and I was still all > > > lit up. I was getting concerned. I did not want to blast the battery > > > pack and have it offgas. I turned back to look at Barry for advice ( > > > Casey was now in front of me stowing his light as well). There were two > > > Barrys!! I could see his two video lights and his primary, and three > > > more primarys in a triangle just like his three lights. This was > > > lighting me up. I scanned my light around the room looking for what was > > > causing the "reflection". I looked at my lights to see how many were on. > > > I looked at Casey again to be sure he was still on the outbound side of > > > me . I looked back at Barry, and then droped down to see if I was > > > hitting a halocline and if that was causing the "reflection". There was > > > none. I checked my gas - a habit when confused. No problem. I then > > > thought I had just seen that same reading, so I checked my left knob - > > > it was on. I check my gas again. Still the same, I hit the guage on my > > > stage tank - still the same, and then I saw it move a little when I > > > breathed - it was OK. All this for nothing but confusion over the > > > lights. > > > > > > I waited for Barry to move towards me while watching Casey - I did not > > > want Casey to move while I was feeling like I was "leaving" those > > > lights, even though I had no idea what they were, but I could not tell > > > which was the "real" Barry. I still did not realize that there were six > > > divers, not three, depsite the evidence ( I could only see their lights > > > shining at me, not their bodies or scooters). Then is slowly dawned on > > > me that it was divers, and then it was a few seconds before it > > > registered that they were our divers ( like where else could they have > > > come from), and then I was still wondering how they could have gone by > > > me, and then I figured that out about three minutes later. This was 5 > > > minutes of confusion that I am glad was in a non-emergency situation. > > > > > > When we got back to A Tunnel, there were five divers at the junction , > > > a cool site in a place like that, and easier to recognize since we were > > > now 60 feet shallower and I could see the bodies of the dives as well as > > > the lights . We tightened up so as not to confuse each other - the other > > > divers stopped and gathered above us while we got out of the way so as > > > not to cause a mixup. I unhooked the line form Gregg Jackson's scooter > > > handle as I went by - this was Bill Stones spiderweb mess floating free > > > in the cave that had cought Jackson's scooter. > > > > > > At deco, on the slope there were divers everywhere, and it was a > > > spectacular site seeing all of those lights floating up out of the cave. > > > > > > If this is what 60% trimix does with an "AED" of 85 feet in a familiar > > > setting in clear water with the best divers as dive partners, what is > > > happening to the student out there and the new divers who are getting > > > the Pete Hess bullshit that " if you can not do 170 on air you have no > > > business trimix diving"? > > > > > > We have a serious problem in the dive training industry and in "tech" > > > diving with the ignorance and moronity of the big mouths who have never > > > "been there done that" except in their own minds in the most pathetic > > > little weenie bounce diving do nothing way - none of these guys have > > > been "Downtown" or played hardball and as such have no idea what the > > > real story is. These people are influencing diving and that is why we > > > have so many "unexplained" accidents. > > > > > > It behooves all of us in the WKPP and anyone else with a brain on their > > > shoulders to get out there and counter the Pete hess's and other > > > horrendous ignoramuses in diving in and out of the "training" agencies .. > > > We owe it to everyone to do this, since we have the real experience and > > > know for certain what the problems are and can see why the deaths are > > > stacking up. > > > > > > We are doing things underwater for years with a perfrect track record > > > that none of these big mouths has ever or will ever do, and we need to > > > have the confindence to point that out to everyone and to take the abuse > > > from the Big Vons and other lowlifes and keep telling the story and keep > > > refering to what we really do and what our scorecard looks like, and > > > save some lives in the process. > > > > > > You have all seen the extreme measure that some of the training agency > > > jerks have gone to in order to try to discredit me and the WKPP, and you > > > constantly see the viciousness of the attacks out of the > > > representatives of these agencies and the deep air or bullshit equipment > > > crowd. We are blowing the whistle on all of them, and that is why. We > > > need to have the same tanacity that they do . > > > > > > There is no reason to ever be polite to a dangerous idiot, and there is > > > no reason not to step all over them with the facts every last time they > > > stick their heads up, I would appreciate it if more of our members would > > > take the time to teach other people the truth, and to kick some of these > > > strokes right in the ass publicly whenever you can with extreme > > > prejudice. > > > > > > -- > > > 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'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]