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Diver missing - Pelham, Alabama

Discussion in 'Accidents & Incidents' started by aeweems12, Oct 5, 2014.

  1. bamamedic

    bamamedic Solo Diver

    # of Dives: 200 - 499
    Location: Somewhere between "hold my beer and watch this!" a
    I have no freakin' idea what happened. I don't know enough about rebreathers to even guess. I'm sure some information can be obtained from the rebreather and autopsy, but that may not be conclusive. The only thing I do know is you've gotta live life for the moment and enjoy the hell out of the time you have because you never know when it's gonna be your turn.
    brockbr likes this.
  2. Peter69_56

    Peter69_56 Divemaster

    # of Dives: 500 - 999
    Location: Australia
    Hence my comment "Enjoy life to the full, as you never know when you will be asked to leave"
    bullfroger likes this.
  3. KevinNM

    KevinNM DIR Practitioner

    That is true. But sometimes freakish bad things just happen even when you are following best practices and staying inside the dotted lines, it's part of why these sort of hobbies are considered inherently dangerous. For example, in another thread in another section a while ago a physician mentioned being involved in accident investigation of a healthy 20some y/o female cave diver who drowned when she got hit with CNS O2 toxicity at 1.3 ATA on OC.

    CamG likes this.
  4. dreamdive

    dreamdive Rebreather Pilot

    So everybody jumps on CCR on how "dangerous" it is. I can think of a few scenarios where it saved lives that would have been lost on OC!
    Seya likes this.
  5. CamG

    CamG Divemaster Candidate

    # of Dives: 500 - 999
    Location: Geneva Indiana
    The danger of speculating on any accident is that it prevents or holds the truth at bay.
    CCR, OC, REC, or TECH dives matters not, facts or only open to interpretation thus opinion which has the human condition infecting it.

    All our physiology changes from day to day, dive to dive.
    Some limits that fall into the general safe range of many will be fatal for individuals.
    These are part of the accepted risks that each diver must assess for him or herself.
    It is the reason in our training we sign all the wavers, paperwork, liability agreements.

    Diver error is a broad, general topic thrown at accidents that were a result of a breakdown of protocol.
    It is a simple way to say the diver encountered a problem that could not be overcome.
    It has been used liberally, and sometimes to mask the real cause of the accident.
    The implication sheds blame on the deceased and can be very harmful to family and friends.

    There are accidents caused by gear, environments, things unrelated to the diver him or herself.
    However the reactions of the diver can be a key point to examine when these occur.
    I know of several accidents, weather or random not foreseen, that the divers survived by keeping calm and working the problem to seek a solution.
    With a CCR it can become more complicated but it all depends on the the reaction of the diver.
    With a CCR they can put you to sleep, after all even the most anal prep/care electronics do not like water!
    Diving a CCR takes a commitment to a intensified regiment of protocol, service, etc.

    I'm not speculating any cause or suggesting any fault.
    I am grieving with the family and friends loosing a loved on is hard enough without all the details of the accident going public.
    Everyone wants to know, possibly the family doesn't!
    Sometimes we the public need to give family and friends time to grieve not push or pry on them.

    shoredivr likes this.
  6. gianaameri

    gianaameri Solo Diver

    On OC your mix does not change, while on CCR it is constantly changes (and can go wrong).

    There is very few circumstances where the benefits of using CCR outweigh the additional risks of using CCR vs. OC.

    There have been a lot of fatalities on CCR shallow, where using a CCR made no sense whatsoever.

    I cannot think of one scenario where CCR can outperform OC, other than from a logistical standpoint (less gas to carry/stage/lug around), that is for deep dives (below 50 meters) and long cave penetration dives.

    Lesson to be learned here: reserve CCR for dives where there is a true benefit?
  7. darushin

    darushin Rebreather Pilot

    # of Dives: 500 - 999
    Location: Tampa FL, USA

    It isn't holding the stop that is hard, it is more for relaxing (at least for me). I shoot my bag come up to the deco stop go ever so slightly negative and relax there holding onto the line for the 60-100 minutes worth of deco I have. This also allows me more brain power to focus on other equally important things.

    ---------- Post added October 13th, 2014 at 08:54 AM ----------

    Depends on COD. If it is hypercapnia, then even a well trained diver may have issues due to the rate at which the CO2 buildup may occurred. Most CO2 burn-through/bypass Occurs on an almost exponential scale. According to most presentations I have seen on the topic, average time between acceptable and fatal levels of CO2 in the loop is usually measured in at most a minute or two (with <60 secs being common). This is the reason that most experts say that current CO2 sensors are not all that helpful.

    ---------- Post added October 13th, 2014 at 08:55 AM ----------

    Do you know the unit he dove?
  8. tstormdiver

    tstormdiver Instructor, Scuba

    # of Dives: 2,500 - 4,999
    Location: Kentucky
    So,... How is one to get the experience to do the deeper dives (50m (150 ft) is beyond recreational limits) & cave, if it is strictly limited to 50m (150 ft) or cave penetration? How about those who want to use it for photography/ videography & not scare off the wildlife with bubbles? It is easy to say, they should only be used for this, or that,... but 1 size does not fit all.
    shoredivr likes this.
  9. Dr. Lecter

    Dr. Lecter Solo Diver

    # of Dives: 500 - 999
    Location: NYC/Honolulu
    Unit was reportedly a rEvo III.
  10. gianaameri

    gianaameri Solo Diver

    Photography/Videography if you want to use CCR you need a buddy who looks over and after you like a hawk and you trust him with your life, while you do the activity (since it is unlikely you can properly monitor the unit).

    After you have achieved your proficiency for deeper dives, then just use it for that.

    Common sense.

    There is a place for CCR, but it is complex and more risky than OC (and more expensive where Air or N32 are suitable gases for the dive).

    Was it worth using it for this dive or dives like this one? [I am asking, I never dived the place].

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