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SPG leaking

Discussion in 'Near Misses and Lessons Learned' started by BlueTrin, Jul 24, 2019.

  1. rhwestfall

    rhwestfall Solo Diver

    # of Dives: 200 - 499
    Location: "La Grande Ile"
    12,137
    10,792
    113
    No way you ever would consider going adrift here:

    upload_2019-7-25_7-33-8.png

    upload_2019-7-25_7-35-9.png
     
  2. rhwestfall

    rhwestfall Solo Diver

    # of Dives: 200 - 499
    Location: "La Grande Ile"
    12,137
    10,792
    113
    Here is what is going on downstream a little over a 1 mile.... regulatory has a real big issue with things adrift in a major shipping channel.

    upload_2019-7-25_7-53-16.png
     
  3. Diving Dubai

    Diving Dubai Instructor, Scuba

    # of Dives: 500 - 999
    Location: Dubai UAE
    3,048
    2,711
    113
    While I get your point, they did eventually bail from the line, and from what I see they were close to the surface anyway

    And while I concede the point that heading to the surface in that location isn't the best and number one option, given the CF they were engaged in, it would have been the best option (given they were so close anyway).

    Of course this whole thing needn't have become the drama that it did. It was nothing more than a minor inconvenience compounded into something greater by poor management of the situation.

    I hope their take away was that their actual experience and capabilities fell far below the level they thought they were
     
    rhwestfall, Griffo and ChuckP like this.
  4. ChuckP

    ChuckP Manta Ray

    # of Dives: 200 - 499
    Location: Cozumel
    576
    380
    63
    One thing the video shows is most accidents are a cascade of bad decisions, thankfully, that didn't become an accident.
     
    rhwestfall and aviator8 like this.
  5. Griffo

    Griffo DIR Practitioner

    # of Dives: 200 - 499
    Location: Sydney, Australia
    1,350
    637
    113
    Can you expand on your reasoning here? In my mind a long hose donate would have made it trivial for the group to have continued their ascent along the line side by side just as they were doing prior to the OOA. None of this facing each other or climbing over each other to donate.
     
  6. Diving Dubai

    Diving Dubai Instructor, Scuba

    # of Dives: 500 - 999
    Location: Dubai UAE
    3,048
    2,711
    113
    Yes certainly.

    A slightly longer hose would indeed have been an asset. However in this type of situation, in current there is the risk that if they lose contact, one person drifts out of reach. (I'm writing up an example of this exact issue which I'll put into a new thread soon)

    On an Air share, especially with divers of this calibre it's imperative that physical contact is maintained at all times. So with physical contact, anything more than 40" is superfluous, and the excess could just be more than a hindrance - especially in this case.

    Don't get me wrong, I use long hose for penetration dives. But for OW (unless I'm on a DPV along with my buddy) then a 40" is absolutely the perfect length to be able to share in comfort while maintaining control of the situation.

    Just my opinion - although it does have some basis of prior experience
     
  7. Chavodel8en

    Chavodel8en Barracuda

    # of Dives: 100 - 199
    Location: Oakland, CA
    468
    251
    43
    In response to the OP's original question, about 1-2 yrs ago I made a thread in this subforum about my SPG leak that might add some info

    Luckily, my leak happened on the surface, but when it happened, there was such a big violent bubbling that I assumed that my tank must have completely emptied in the 1-2 minutes before I shut it down.

    Once I got everything fixed, turns out I only lost about 200 psi.

    So from my experience, even though not much air is involved in an HP hose leak, the bubbles sure are impressive. Maybe the fact that the air is exiting at HP makes the bubbles seem like they are more than they actually are.
     
    BlueTrin likes this.
  8. BlueTrin

    BlueTrin DIR Practitioner

    # of Dives: 50 - 99
    Location: London
    1,001
    352
    83
    That’s very useful to know: because I have never seen a SPG leak I was impressed by the amount of bubbles like you said
     
  9. Bob DBF

    Bob DBF Solo Diver

    # of Dives: I just don't log dives
    Location: NorCal
    6,299
    6,233
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    Primary donate, the Air 2 is for the donor, that's why it's short.

    Breathing off a freeflowing reg is a pita, but doable, especially when there are bigger problems.

    I agree, but my emphasis would be on better training. Over the years I have dove with a double hose, a single second stage, a standard rec primary and alternate, primary and Air 2 clone, various lengths longhose and bungeed backup, and at no time have had an issue with sharing air, because I train with the rig I am using. It's not the configuration that is the problem, it's the skill of the diver.

    I like that BSAC and DIR groups have a standard configuration and insist that members are proficient, unfortunately a lot of other divers not only have different configurations, but they don't stay proficient on their gear, if they ever were. Not that I'm jumping on board with a standard configuration, but training and demanding proficiency is a good thing, of course being demanding is one reason I wind up solo.


    Bob
     
    BlueTrin likes this.
  10. JackD342

    JackD342 Dive Shop

    # of Dives: 500 - 999
    Location: Highland Park, IL
    2,066
    1,151
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    At least one of those divers would have rocketed uncontrolled to the surface if they attempted a free ascent. Listen close, and you can hear a BCD over pressure relief valve doing quite a bit of venting on the ascent, while holding the line to stay down.
     
    BlueTrin likes this.

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