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The Science of Water

Discussion in 'Bushcraft and survival skills' started by British Red, Mar 2, 2008.

  1. saxonaxe

    saxonaxe Full Member

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    (as far as I could see) no-one has pointed out the fairly obvious, but oh so easy to forget: you need to keep track of your "untreated" and "clean" water containers.

    It's a very good point Sara, although perhaps it's so basic that people omitted to mention it.

    Guess which are my clean water containers and which are unfiltered...:biggrin:

    [​IMG]
     
  2. Toddy

    Toddy Mod
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    Y'see, that's neat, but what if someone just has nalgene bottles, and in different colours. It's blooming hard to tell some of those colours apart in the half gloom of a hurried set up kind of late on, iimmc ?

    M
     
  3. saxonaxe

    saxonaxe Full Member

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    Toddy !! Your Mothering instinct just showed through...:laugh: :laugh:

    My view is, if someone can't sort out their personal admin, they shouldn't be in the woods playing with axes and sharp knives..

    I know, I'm a cynical 'ol git...:laugh:.

    My other method is, if I'm not using the steel bottles but instead an issue type water bottle containing safe water, I make sure that I mark it.
    In this case with a thick red rubber band. I can see it in the daylight and in the dark I can feel the band...sort of cheapo Braille trick.

    [​IMG] .
     
  4. Nice65

    Nice65 Full Member

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    Glow in the dark for wee, clear for drinking water. Simple :)
     
  5. Toddy

    Toddy Mod
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    ....if you let the bottle get some sunshine...... :)
     
  6. Toddy

    Toddy Mod
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    I admit that I use tape because I can feel it around the bottle.
    However, joking aside I know someone who relied on the different colour of the bottle....and he kept a third one for a midnight piddle in his hammock.
    Aye, indeed; apparently it's easy to get them mixed up :rolleyes:
     
  7. Janne

    Janne M.A.B (Mad About Bushcraft)

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    Know what is upstream from you. Map reading skills are useful.
     
  8. SaraR

    SaraR Full Member

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    Very important point to consider for anyone in the Welsh hills, where always seems to be a dead sheep a little bit further upstream!
     
  9. Janne

    Janne M.A.B (Mad About Bushcraft)

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    So no need to carry food then!
    Or have I watched Grylls too much?
    :)
     
  10. SaraR

    SaraR Full Member

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    :depressed:
     
  11. Robson Valley

    Robson Valley Full Member

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    I'm always much more comfortable to haul village water (2-liter bottles, 5 gal cans) if and when I can.
    It's all snowfield melt water run through an enormous filter system and a typical chlorination treatment.
    I can see the source from my kitchen.

    I've used mountain stream water quite often. You're hiking through a wild life bathroom.
    Always best boiled, even on a hot day.
    You need a good memory for how long ago the high pasture grazing leases were used!

    All the same, I should invest in a treatment system.
     
  12. Ascobis

    Ascobis Forager

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    Lumpy bits are common everywhere. Decades ago, before Crypto and chemicals, I heard that running oxygenated streams took care of most of the boggie bits from natural sources. Decades. I carry filters and tablets now.

    Humor: A Gatorade bottle works for collection. Just don't buy it on the way out of town and drink it that afternoon. Diminishing (increasing?) returns in the wee hours.

    @Toddy: Sunshine on a clear bottle is great. One is advised to do some research on which plastics pass UV well.
    @Joel_m: Extremophiles abound, but they aren't looking to us for a happy habitat. 165C nails most enterics and sufficient* boiling nails the rest. *Sufficient not being readily available in any bushcraft outing that lacks a lab autoclave. Teeny bubbles at the bottom of a canteen cup heated by burning twigs do not meet the requirements. BTDT, learned from it.
    @OP, if you're still here: Thanks

    A link from this side of the pond: https://wwwnc.cdc.gov/travel/page/water-disinfection.
    I keep this link for its mention of alum: http://www.gcrg.org/bqr/7-4/water.htm
    I had another good one from the UN but can't find it. Ask Google.
     
    SaraR and Robson Valley like this.
  13. Woody110

    Woody110 Mod
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    Thanks for this, we are looking at water filters with the scouts and my lesson plan has been written for me.
     

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