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Free diving, tank sharing fatality - Australia

Discussion in 'Accidents and Incidents' started by DandyDon, Jun 14, 2019.

  1. Dan

    Dan Orca

    # of Dives: 500 - 999
    Location: Texas
    5,183
    2,807
    113
    BTW, I’m just sharing info presented by the freediver experts. I know nothing about freediving as you read from my previous posts. I didn’t even know what SWBO stands for until I follow this thread.

    Looking forward to read your post on SWBO :)
     
  2. Laurie S.

    Laurie S. Assistant Instructor

    # of Dives: 500 - 999
    Location: Tucson, Arizona and San Carlos, Mexico
    988
    327
    63
  3. chris kippax

    chris kippax Divemaster

    # of Dives: 500 - 999
    Location: Australia
    559
    321
    63
    The idea behind not having the snorkel in your mouth is that if you suffer SWBO the snorkel funnels water straight in to your lungs. If someone recovers you from depth swimming up will force water into your mouth. You remove the snorkel just before your descent.
     
    Johnoly likes this.
  4. mac64

    mac64 Barracuda

    # of Dives: 5,000 - ∞
    Location: Ireland
    267
    90
    28
    How does the snorkel funnel water into the mouth, having free dived for years and never taken the snorkel from my mouth what difference does it make if an unconscious diver has a snorkel or their mouth open?
     
    Laurie S. and Bob DBF like this.
  5. Dan

    Dan Orca

    # of Dives: 500 - 999
    Location: Texas
    5,183
    2,807
    113
    What’s the protocol in such situation? If the rescuer sees such situation, would the rescuer remove the snorkel from the rescuee and close his / her mouth before ascending or put a reg if the rescuer were a Scuba diver?

    I can imagine that as they are ascending, the rescuee’s lungs would start expanding, acting as a vacuum bag, sucking the water in and fill up the lungs with water. A 7 liter lungs full of water is like adding 15 pounds of dive weight on your body. It’ll be very heavy to lift.

    Freediving HD also mentions about a blackout freediver with snorkel on might clench on the snorkel tightly which makes it difficult for the rescuer to remove the snorkel delaying giving mouth-to-mouth resuscitation.
     
  6. chris kippax

    chris kippax Divemaster

    # of Dives: 500 - 999
    Location: Australia
    559
    321
    63
    Because you have an 1 inch tube directly connected to your mouth that can hold it in the open position. If you pass out with your snorkel out of your mouth and your mouth closed chances are it will stay that way.
     
  7. chris kippax

    chris kippax Divemaster

    # of Dives: 500 - 999
    Location: Australia
    559
    321
    63
    My main concern would be getting to the surface
    As you ascend with them let their chin rest on their chest to prevent water ingress. It is a bad situation to be in.
     
  8. mac64

    mac64 Barracuda

    # of Dives: 5,000 - ∞
    Location: Ireland
    267
    90
    28
    The problem with that idea is the first thing you learn when using a snorkel is to keep a pressure of air at the mouth piece to stop the very thing you say will happen. Has the idea been testing or did someone just dream it up?
     
    Laurie S. likes this.
  9. Dan

    Dan Orca

    # of Dives: 500 - 999
    Location: Texas
    5,183
    2,807
    113
    When you pass out, your muscles would relax. I experienced it myself. When I passed out, I wet myself as my bladder was full at the time. Luckily I didn’t injure my head when I fell unconscious. I can imagine your air passage would also relax and open when you pass out.

    Glad to hear that you haven’t experienced a SWBO. Make sure you don’t freedive alone too!
     
  10. Dan

    Dan Orca

    # of Dives: 500 - 999
    Location: Texas
    5,183
    2,807
    113
    Rules are made to prevent recurrence of past accidents.
     

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