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Thread: Mai Sai Cave

  1. #1
    Senior Member Thin White Duke's Avatar
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    Mai Sai Cave

    Obviously now a major news story and concern.

    Hope for the best for all involved.

  2. #2
    Super Moderator dawsey's Avatar
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    Very sad the Thai ex-navy diver has died during the rescue.

    Hopefully a happy conclusion for these all the kids.
    RIP Nicke June 1971 - Jan 2013.

    AT SOME POINT IN LIFE, EVERYONE HAS GAMBLED ON A FART AND LOST.

  3. #3
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    The day before the Thai Navy seal died, there was an interview in the Danish press with a Danish diver who is part of the group of international divers who are diving in the cave.
    He said that it was like amateur hour with the Thai Navy seals. They dived wiyhout helmets, they used a type of valve that is very susceptible to damage in caves, especially when you have your tank on your back, witch they did, and witch is a big no no.
    And last but not least. They dived with only one tank, and seeing as the guy apparently ran out of air, a fatal mistake.

  4. #4
    Senior Member geir's Avatar
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    Quote Originally Posted by Dkdude View Post
    The day before the Thai Navy seal died, there was an interview in the Danish press with a Danish diver who is part of the group of international divers who are diving in the cave.
    He said that it was like amateur hour with the Thai Navy seals. They dived wiyhout helmets, they used a type of valve that is very susceptible to damage in caves, especially when you have your tank on your back, witch they did, and witch is a big no no.
    And last but not least. They dived with only one tank, and seeing as the guy apparently ran out of air, a fatal mistake.
    But, but, they are the best in the world........Sometimes it seems like they rather loose lives than loosing face asking professionals for help. IMO they should have got in professional help way before.
    Dkdude likes this.
    A blowjob is better than no job!!

  5. #5
    Senior Member MrDK's Avatar
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    RIP to the diver that died.
    Having spent most of my career dealing with atmosphere including air supply in poor ventilated spaces there are massive pulmonary issues to be concerned about.
    Starting with oxygen. Normal concentration in balanced air is just shy of 21% O2
    The human body can survive 12% O2, but at an increased breathing rate and once an O2 molecule has been fully combusted in the body it has no more use and the byproduct is CO2 ... C2 + 2O2 => 2CO2.
    Herein lies the bigger problem. While CO2 at 3-500 PPM (0.03-.05%) is good atmosphere, about 20,000 PPM (2%) will cause brain damage in short order; in other words when about 10% of available O2 from balanced air has been consumed it is brain damage time. Further, as the O2 levels drops by 4% the CO2 levels will reach 40,000 PPM (4%) and likely cause death in 15-30 minutes.
    So while a 4% drop in O2 levels may cause some light headiness and some lack of motor skills the byproduct from a complete combustion will kill you.
    Add aerobic and anaerobic decomposition (dead fish and boys taking a shit) there will be more CO2 as will as H2S (hydrogen sulfide) which may cause your demise at just 100 PPM (0.01%).

    I do not know the actual location/situation, but a small hole drilled in to the cave with air supply by pressure and hopefully exhaust through passage above water levels should do magic. Thais, however, may resort to high concentrations of O2 which may cause hyperoxia that could kill you as well, but even at 40% (no adverse health effect) clothing may become instantly combustible needing only a small spark to make a cotton T-shirt a "wrap-around" inferno. If they do anything like that the boys better be naked.
    All that said, if they can supply regular fresh air faster than they can breath it (40 LPM / person) should do well ... a good compressor can deliver 800 LPM, Plenty for 20 people at moderate activity.

    Drowning not withstanding, priority #1 are the essentials to sustain life
    Remember the mine rescue in a Chilean mine near a decade ago?
    Took over two months to get them out, but they got air, water and some food ... first supply took. like, 20 days.
    Last edited by MrDK; 8th July 2018 at 21:05.
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  6. #6
    Senior Member briofoz's Avatar
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    All 13 have now been rescued.

  7. #7
    Senior Member Thin White Duke's Avatar
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    Great news.....credit to the rescue teams.
    Pablo, geir and sundancekid like this.

  8. #8
    Super Moderator dawsey's Avatar
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    Finally, a happy ending everyone likes.
    RIP Nicke June 1971 - Jan 2013.

    AT SOME POINT IN LIFE, EVERYONE HAS GAMBLED ON A FART AND LOST.

  9. #9
    Senior Member Waharoa's Avatar
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    Quote Originally Posted by dawsey View Post
    Finally, a happy ending everyone likes.
    Except the dead diver and his family... I hope they don't get forgotten by the authorities in all this...
    Religion is the sigh of the oppressed creature, the heart of a heartless world, just as it is the spirit of a spiritless situation. It is the opium of the people.

  10. #10
    Super Moderator dawsey's Avatar
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    Quote Originally Posted by Waharoa View Post
    Except the dead diver and his family... I hope they don't get forgotten by the authorities in all this...
    Very true. That accident should never have happened to an experienced diver.
    As you say, hopefully his family will be looked after.
    RIP Nicke June 1971 - Jan 2013.

    AT SOME POINT IN LIFE, EVERYONE HAS GAMBLED ON A FART AND LOST.

  11. #11
    Senior Member stupscott's Avatar
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    Failing businessman Elon Musk doesn’t seem to be coping with any criticism lately 555.

    https://www.bbc.co.uk/news/world-asia-44846945

    One of the British cave divers is sus for living in Thailand and pedo for saying his mini sub was useless.

  12. #12
    Super Moderator dawsey's Avatar
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    ^ I hope Musk gets taken to the cleaners for implying that.
    RIP Nicke June 1971 - Jan 2013.

    AT SOME POINT IN LIFE, EVERYONE HAS GAMBLED ON A FART AND LOST.

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