Drinking sea water

  • I saw a documentary on discovery channel yesterday about these people who were adrift in an inflatable dingy for 5 days. They had no water or food. There were five of them to begin with, three men and two women, and only two of them survived when a cargo ship spotted them on the fifth day. One woman succumbed to injuries sustained when their sailboat sunk. Two men drank sea water, became delirious and jumped in the water around the 4th day to be eaten by sharks that were following the dingy.


    This made me think again about the predicament of being adrift in the sea with no drinking water. There are a few devices in existence that can make drinking water out of sea water. The most interesting thing to me however was reading somewhere that one man experimented successfully with drinking sea water. The key from what I remember was to drink in very small quantities often, not when you actually feel thirsty. I can't find this information again and naturally am skeptical of it.


    The only way to know for sure is to experiment on oneself. I have in mind to try a week of drinking sea water. Any thoughts?

  • In the book "Adrift", the author mentions that an enema can be used to absorb water that is otherwise undrinkable. But I think he was referring to "undrinkable" in terms of dirty, or unsterilized. I don't know if the technique would work for salt water.


    I think that the concentration of salt in seawater is about 35 parts per thousand by weight. Water is 1000 g/l, so if you drink 2 litres of water a day, you would consume about 70 g of salt per day. A quick google search says that the recommended daily allowance of salt is 2.7 to 3.0 grams per day, so you will be consuming around 25 times the suggested daily allowance.


    Sounds unwise to me.

  • I read adrift, good book, I don't remember the enema part though. I do remember reading about absorbing water through the rectum somewhere else. Something about the membranes absorbing the water but not the salt. The trick, if this method actually works, would be to get the water up there if you don't have an enema handy.

  • I think a turkey baster from publix will do just ass well <img src= " height="23" srcset="https://spearfishing.world/forum/images/smilies/emojione/1f606@2x.png 2x">


    <img src= " class="smiley" srcset="https://spearfishing.world/forum/images/smilies/emojione/1f606@2x.png 2x" height="23" width="23" loading="eager" data-tooltip="biggrin" aria-label="biggrin"> <img src= " class="smiley" srcset="https://spearfishing.world/forum/images/smilies/emojione/1f606@2x.png 2x" height="23" width="23" loading="eager" data-tooltip="biggrin" aria-label="biggrin"> <img src= " class="smiley" srcset="https://spearfishing.world/forum/images/smilies/emojione/1f606@2x.png 2x" height="23" width="23" loading="eager" data-tooltip="biggrin" aria-label="biggrin">


    Oh that was funny...

  • Dan stay away from sea water, you are supposed to be IN it, not the other way around :nono: :adrift: :alchohol1: Otherwise your manhood will be compromised <img src= " height="23" srcset="https://spearfishing.world/forum/images/smilies/emojione/1f606@2x.png 2x">

    I'm a Speardiver, not a freediver

  • groganema?

    :good: <img src= " class="smiley" srcset="https://spearfishing.world/forum/images/smilies/emojione/1f606@2x.png 2x" height="23" width="23" loading="eager" data-tooltip="biggrin" aria-label="biggrin">

    Right. I just thought that the "appropriate" materials might be cheaper and easier to stash in an emergency bag than a solar still.

    Do you guys think that if an enema or a turkey baster wasn't on hand it would be possible to use an empty plastic bottle? You know, fill it with sea water stick it in your butt stand on your head and let gravity do its thing?

  • :good: <img src= " class="smiley" srcset="https://spearfishing.world/forum/images/smilies/emojione/1f606@2x.png 2x" height="23" width="23" loading="eager" data-tooltip="biggrin" aria-label="biggrin">


    Do you guys think that if an enema or a turkey baster wasn't on hand it would be possible to use an empty plastic bottle? You know, fill it with sea water stick it in your butt stand on your head and let gravity do its thing?


    What about vaseline? Good ol´spit may do the trick ... <img src= " height="23" srcset="https://spearfishing.world/forum/images/smilies/emojione/1f606@2x.png 2x">

    I'm a Speardiver, not a freediver

  • http://www.sea-pack.com/


    This is just one of many personal desalination products out there.
    Reverse osmosis is the most common.
    I had a watermaker on my sailboat 15 years ago that could supply a whole crew with salt to drinking water.
    All of these are a better looking/working real alternative to the pictures already posted^^

  • I've read about this method before, you're supposed to be able to do it with sea water. But what are the chances you'll have a tube in such a situation. Any other ideas about what you can use to get fluids into your ass?

  • I've read about this method before, you're supposed to be able to do it with sea water. But what are the chances you'll have a tube in such a situation. Any other ideas about what you can use to get fluids into your ass?


    Tubing from (not yours) floatline?

    Marco Melis

    A bad day fishing is ALWAYS better than a good day at work.

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