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Thread: First-hand account of down current, with video footage

 

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    First-hand account of down current, with video footage

    Moderator's Comments:
    This discussion has been split from a thread in Accidents and Incidents.

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    First-hand account of down current, with video footage

    Video we took at Santa Rosa Wall 3/28/12 at 10:05a.m. Santa Rosa Wall 3-28-12 @ 10:10 a.m. on Vimeo

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    lionfish-eater's Avatar
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    That video deserves it's own thread. So much to say but it will all come out wrong. Glad you are ok.
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    Wow, thanks Scurbyduck for posting that. What a terrifying experience. If you had experienced any other issue or failure at that time, even a usually minor one, it could have been a very different outcome. If you ran out of air while dealing with it, it could have been a very different outcome.

    I knew a couple that got caught in a downcurrent in Coz from 90' to 130' and it happened at the beginning of the dive when they had plenty of air to deal with it and ascend slowly and do an extended safety stop.

    I was caught in a downcurrent while cave river tubing in Belize once. It was extremely high, fast moving water after flooding and we were the first group allowed to tube through the caves in a week and not all caves had enough "head space" above the water and were still not safe. Half our group had walked around one iffy cave and some of us did it. The student guide suggested we daisy chain and led us right into the wall halfway through by accident. The leader at the back was yelling, "Get away from the wall! Kick off the wall!" The person beside me bore down on my tube as she kicked off and my feet hadn't touched the wall yet. My tube flipped and I was immediately dragged down about 15 feet WITH a life jacket and obviously no air source. I held my breath for a long time and kicked up as hard as I could to no avail. I was being held u/w and couldn't progress vertically at all. I then remembered what the leader said, kicked off the wall and went straight up within a second. I went flying in the surface current toward the opening of the cave, where the leader had caught my tube and had thought he had lost me since I was under for so long. If I had to hold my breath any longer, it would have been a very different outcome.

    Vertical currents usually aren't very wide, and you can kick yourself horizontally out of them.
    Splitlip and anklefoot like this.
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    Notice the direction of the bubbles from the diver at 4:35 in the video.
    Thanks for sharing, glad your all safe. Very informative.
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    Holy Crap!!!
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    Quote Originally Posted by Darol View Post
    Notice the direction of the bubbles from the diver at 4:35 in the video.
    Thanks for sharing, glad your all safe. Very informative.
    Quote Originally Posted by lionfish-eater View Post
    That video deserves it's own thread. So much to say but it will all come out wrong. Glad you are ok.
    Quote Originally Posted by koozemani View Post
    Holy Crap!!!
    +1 to all three of these. and double glad you're OK.

    So, did you do the in water re-compression(is that right?) as suggested by your buddy?
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    I would like to say this video cam was on my son's head and this was only his 4th wall dive, my husband was just above him until you see him come into the frame to assist him in going up, which they finally did after working their butts off. We wanted to post the video to show what was going on down there.


    Last edited by scurbswife; April 20th, 2012 at 10:52 AM.
    CT-Rich and HBfrogman like this.

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    Okay, I'll be the bad guy. I'll give you my observations and please tell me where I'm incorrect.

    #1 I see a diver descending without his buddy @2 minutes what I believe is his buddy is below him, turns and waves to camera diver to come closer which he ignores. By 2:15 he's continued ignoring his buddy and dropped at least 25 feet below him and still dropping. By 2:50 you can see his buddy is easily 60 feet above him.

    #2 I can see a good current running along the wall, it's running along and diagonally down the wall, doesn't appear to me to a big deal. @3:30-4:15 you've got a buddy team actually finning down to descend and keep their heads into the current, it takes them at least 45 seconds to descend the distance the camera diver did in 10 seconds. They obviously are taking it slow and conservative as you should when diving, are not dropping down like a rock, are aware of their surroundings have situational awareness. At 4:26 you get a good shot of the two divers, the wall and the bubbles and you can see it's a good current running laterraly along the face. The camera diver@ 4:43 for the first time realizes he needs to put air in his BCD to stop his rapid descent, he's feeling the pull of the current and the results of his rock shot drop descent and starting to let conditions over-whelm him.

    #3 From then on the camera diver is panicking and over-reacting to the current, he's been very aggressive in his descent, very unaware of the current and totally ignored staying with his buddy, he is now feeling the pull of the current and hasn't adjusted and starts panicking. From there on he's panicked. @5:00 minutes his buddy appears, obviously the current was totally manageable if this is the buddy from the descent, as the camera diver had 2 and 1/2 minutes of separations and the buddy easily comes to him. From then on the camera diver is panicked and over breathing his reg and does what inexperienced divers who panic do which is head to the surface like a balloon.

    * I'm not condemning the camera diver. These are my observations based on what I see in the video.

    Based only on what I could see from the video -

    1) Current was not deadly in any way.
    2) Camera diver would greatly benefit from some training on descending properly
    3) Camera diver would benefit and be safer from developing better situational awareness
    4) Camera diver needs to understand how important it is to stay with buddy during descent and on dive
    5) Buddy diver needs to understand the same thing
    6) It's quite possible that the buddy couldn't have grabbed the camera diver on his ascent, but if it was possible, he should have grabbed him and done everything possible to hold him at a safe depth, calm him down and do a slow safe ascent to safety stop. But like I said, hard to tell from the video if it was possible.
    7) Buddy needs more information about the issues of in water recompression and the better choice would have been to put the camera diver on 100% oxygen and monitor for DCS symptoms

    Glad the camera diver survived his panicked rapid ascent with no heath issues. Being a mom and that was your child, that has got to be horrifying to watch (the panicking part) and heart goes out to you.
    Last edited by Mike; April 20th, 2012 at 03:57 PM.
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    Quote Originally Posted by Dan G View Post
    So, did you do the in water re-compression(is that right?) as suggested by your buddy?
    Just a quick note so that people are not confused by terminology. There is no in-water recompression (IWR) in this video. The diver descends and does an omitted stop. There is a very big difference,which I do not have time to explain today. IWR is a major event that should only be attempted under extreme circumstances by people with proper equipment and the knowledge of how to do it.
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