The Naked Scientists

The Naked Scientists Forum

Author Topic: How Can I Keep Drinking Water From Freezing & Still Safe To Drink ?  (Read 18636 times)

neilep

  • Withdrawnmist
  • Too Much Free Time Level Member
  • **********
  • Posts: 20589
    • View Profile


Dearest Waterologists and People With Experience of Water,

As a s sheepy, I of course love water. Water is my all time favourite thing that comes from clouds as rain, snow and hail.

Water is the bestest thing
It made Gene Kelly dance and sing
When it's ice it looks like ' bling'
Christmas Snow was sung by Bing


Quality !! ::)


Look, here' some water !



Nice eh ?



Humour me. Say I live in a place where the temperature regularly falls just below the freezing point of water...

Is there any household item/chemical/ingredient from the larder etc.... that I can ewese to stop my outside tank of rainwater freezing ? so that it will still keep it safe for  ewe and me to drink ?

Unfortunately the heating element has packed up , so all I can do is add an additive !..any ideas ?



Thanks, talking about all this water has made me want to do a wee-wee !



Hugs & shmishes


mwah mwah




Neil

The Rain In Spain Makes Wet Bulls
xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

BenV

  • Hero Member
  • *****
  • Posts: 1524
    • View Profile
It won't be as nice to drink, but a small amount of salt and sugar may prevent the freezing, and then it's a big tank of rehydration drink...

dentstudent

  • Hero Member
  • *****
  • Posts: 3146
  • FOGger to the unsuspecting
    • View Profile
or the addition of some alcohol should work in the same fashion as anti-freeze. I hear that Austrian wine is good for this...

neilep

  • Withdrawnmist
  • Too Much Free Time Level Member
  • **********
  • Posts: 20589
    • View Profile
It won't be as nice to drink, but a small amount of salt and sugar may prevent the freezing, and then it's a big tank of rehydration drink...

Thanks Mr BenV

I did wonder about adding salt but did't know if there was a fine line between keeping it liquid and also non toxic !

Sugar sounds nice !

neilep

  • Withdrawnmist
  • Too Much Free Time Level Member
  • **********
  • Posts: 20589
    • View Profile
or the addition of some alcohol should work in the same fashion as anti-freeze. I hear that Austrian wine is good for this...

Cheers ! dentstudent

Yes, alcohol..it won't evaporate away then ?..hmmm..as a tea-totaller I'd have to think about that as a last resort !

Thanks chum.

Karen W.

  • Moderator
  • Too Much Free Time Level Member
  • *****
  • Posts: 31541
  • "come fly with me"
    • View Profile


Dearest Waterologists and People With Experience of Water,

As a s sheepy, I of course love water. Water is my all time favourite thing that comes from clouds as rain, snow and hail.

Water is the bestest thing
It made Gene Kelly dance and sing
When it's ice it looks like ' bling'
Christmas Snow was sung by Bing


Quality !! ::)


Look, here' some water !



Nice eh ?



Humour me. Say I live in a place where the temperature regularly falls just below the freezing point of water...

Is there any household item/chemical/ingredient from the larder etc.... that I can ewese to stop my outside tank of rainwater freezing ? so that it will still keep it safe for  ewe and me to drink ?

Unfortunately the heating element has packed up , so all I can do is add an additive !..any ideas ?



Thanks, talking about all this water has made me want to do a wee-wee !



Hugs & shmishes


mwah mwah




Neil

The Rain In Spain Makes Wet Bulls
xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

I want to say booze or alcohol will prevent it from freezing maybe... and It also may separate and pour off the top as I think water is heavier.. bags of margarita mix etc won't freeze solid....

Karen W.

  • Moderator
  • Too Much Free Time Level Member
  • *****
  • Posts: 31541
  • "come fly with me"
    • View Profile
Oh poop...! Stuart beat me!!!

 Nice poemage indeedy Kind Sir!
« Last Edit: 07/01/2009 17:00:46 by Karen W. »

Make it Lady

  • Hero Member
  • *****
  • Posts: 4050
  • Hands-on fun for everyone!
    • View Profile
Surely only the top of the tank would freeze if you bought a big enough tank. The lower part of the tank would stay at 4degreeC. You could pump out the water from the bottom of your tank. I would sink it in the ground for insulation. You could also agitate it constantly (and I  don't mean like you agitate your neighbour.

RD

  • Neilep Level Member
  • ******
  • Posts: 7336
    • View Profile
An incandescent lightbulb in the air-space above the water may provide just enough heat to prevent freezing.

Possibly pump the water through a solar panel on the roof to raise its temperature.

A windmill rotating paddles in the tank could heat the water by agitation (see Joule's apparatus)

or put warm-blooded creatures in the water tank  :)
« Last Edit: 07/01/2009 21:39:01 by RD »

paul.fr

  • Guest
you could always instal an outside light near the tank, the heat from the light should / may prevent the water freezing. You could also bury your tank, and have ....compost(!) packed around the tank.

Bored chemist

  • Neilep Level Member
  • ******
  • Posts: 7745
    • View Profile
OK, I realise this might be tricky for a sheep, but keep the water in a bottle in your pocket.

Make it Lady

  • Hero Member
  • *****
  • Posts: 4050
  • Hands-on fun for everyone!
    • View Profile
Your mistaking him for a kangaroo.

lancenti

  • Jr. Member
  • **
  • Posts: 96
    • View Profile
or the addition of some alcohol should work in the same fashion as anti-freeze. I hear that Austrian wine is good for this...

Will isopropyl alcohol, highly diluted work?

Or does it have to be something like the ethanol found in vodka?

steam_cannon

  • Newbie
  • *
  • Posts: 1
    • View Profile
Regarding:
"Will isopropyl alcohol, highly diluted work?
Or does it have to be something like the ethanol found in vodka?"

Isopropyl alcohol is poisonous and is not drinkable. 

Your best bets for keeping water from freezing are:
1. Utilizing a heat source of some kind
 A. a solar greenhouse
 B. a solar concentrator
 C. a regular electric heater for barrels or livestock tanks.
 D. thermal mass, using a solar water pump or passive circulation to circulate water though pipes in the ground or a buried tank below the frost line.
 E. A small flame in a pit under a metal tank with insulated sides, such a candle size flame using a large propane tank, a smokeless alcohol candle with a large reservoir,  a regular week long burning candle.
2. Chemical methods
 A. Using ethanol like vodka to raise the freezing point, but this will also turn to slush and freeze if it gets cold enough.
 B. Adding salt and sugar, but no more then found in an energy drink which will still freeze if it gets cold enough.
3. If freezing isn't a problem and you just want to store it in a tank without ice breaking the tank.
 A. Put in food safe foam blocks or weighted soda bottles in the tank so the ice crushes those instead of bursting the tank.

CliffordK

  • Neilep Level Member
  • ******
  • Posts: 6413
  • Site Moderator
    • View Profile
Say I live in a place where the temperature regularly falls just below the freezing point of water...

I was going to suggest simply burying the tank.

However, if the temperature falls slightly below freezing, it may not be a problem at all. 

If it hits, say -1C or -2C at night, then warms up during the day, you might get a skim of ice on top of the tank, but not much more.  Leave a little expansion space at the top of the tank.  Ideally a V-shaped tank would be safest.  But, it will take a lot of cold weather to turn your tank into a solid block of ice.

chiralSPO

  • Sr. Member
  • ****
  • Posts: 392
    • View Profile
There are grades of glycerol that can be fed to livestock--a little of that in the water might do the trick, and you wouldn't have to worry about it evaporating. Glycerol does the same thing as antifreeze, but is nontoxic.

 

SMF 2.0 | SMF © 2011, Simple Machines