#68399 - 06/29/06 02:51 AM
Re: help with water purification idea...
|
Cranky Geek
Carpal Tunnel
Registered: 09/08/05
Posts: 4642
Loc: Vermont
|
Some of us do something like this with iodine tablets in 5/8 dram lab vials. I never thought about using crystals; what size is your nitro vial? The vials I use are about the same size a .45ACP or 10mm Auto cartridge. (Or about as big around as an AA battery, about 2/3s as long.)
_________________________
-IronRaven
When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.
|
Top
|
|
|
|
#68401 - 06/29/06 04:00 AM
Re: help with water purification idea...
|
Cranky Geek
Carpal Tunnel
Registered: 09/08/05
Posts: 4642
Loc: Vermont
|
But not as idiot proof. It's a toss up, one option gives you more, one option gives you harder to screw up.
Having been hypothermic, heatstroked and deydrated (not all three at once, obviously), I can say that anything beyond "2 tablets per quart" can get sketchy. I'm not alive becuase I'm skilled. I'm just too petty to give the skinny fellow with the sythe the satisfaction. :P
So I guess I should ask, if you have a PSP, this iodine solution, and either a milk bag or a Nalgene bottle, how does one keep the crystals out of your side of this? Filter?
_________________________
-IronRaven
When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.
|
Top
|
|
|
|
#68402 - 06/29/06 05:21 AM
Re: help with water purification idea...
|
Veteran
Registered: 12/10/01
Posts: 1272
Loc: Upper Mississippi River Valley...
|
>> a capsul of this fluid is poured into a quart of water and allowed to sit for 30 mins, longer depending on temperature <<
Should work fine - the commercial equivalent is Polar Pure.
I used iodine treatment for decades. Doesn't fare well in standardized test against oocystic organisms like giardia (hard to kill chemically) and crypto (extremely hard to kill chemically). The "good" news is that a significant fraction of the population suffers no ill effects from those critters - perhaps as high as 40%. The "bad" news is if you're in the wrong part of the population, giardia can be very uncomfortable and crypto might even kill you rather more directly than giardia.
I've never had any symptoms and there is no doubt that I've drunk a LOT of water known to contain giardia. Pick your reasons - you have to roll your own dice. There are lab results that demonstrate that iodine WILL eventually kill giardia and even crypto, but the wait time is very very long (8 hours or maybe a little longer to be sure with crypto).
I can't use iodine any more because my wife has a (very minor) thyroid condition now. Chlorine dioxide tablets and/or Katadyn Guide filter are what I use now. Take a look at the MSR MIOX - it works extremely well and is not all that large. Or maybe the Steri-Pen. Paramedic Pete tested these a while back in his lab and confirmed the claims. I would feel a little more confident with the MIOX, personally.
There are simple methods for avoiding the oocsytic critters - like going shallow in deep calm water (they sink). That's the practice in places like the Boundary Waters region between the US and Canada. Extend that fact into a little care and cleverness with multiple containers (at least 2) and you should be able to significantly improve the odds in your favor. Iodine works great on everything else.
HTH,
Tom
|
Top
|
|
|
|
|
|
|
|
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
|
|
|
|
|
|
|
1 registered (SRMC),
332
Guests and
70
Spiders online. |
Key:
Admin,
Global Mod,
Mod
|
|
|