2
votes
1answer
58 views

What are some emergency water purification methods? [duplicate]

If you're lost in the wilderness (and you've foolishly left behind your handy dandy water purification tablets and water filter), what are some of the best and safest ways to purify water? What do you ...
3
votes
1answer
100 views

How can I tell when water is contaminated with industrial chemicals without any special equipment?

With fracking, chemical spills, and all sorts of environmental nonsense on the rise, water quality can be compromised in some areas. How can I tell when it's not safe to consume even after filtering ...
7
votes
2answers
249 views

Do you need to purify all mountain water sources

I was just reading this question What is the safest way to purify water? Now I walk a lot in Snowdonia in North Wales and on occasion I drink from mountain streams. I've even camped next to mountain ...
5
votes
3answers
153 views

When to perform a filtering of the water?

Let's imagine I'm hiking and I find a water source - like a lake, a stream or a well, and I want to fill my water bottle with it. I have a bottle and a water filter. And a bandana. Since I can't ...
5
votes
3answers
941 views

Are water purification tablets safe?

There are a few questions regarding safety of water purification, one regarding expiration date, another regarding iodine, but I know that there are more than one types of water purficiation tablets. ...
4
votes
1answer
230 views

How to clean the ceramic filter of a water pump?

We used a Katadyn Vario filter during our last hike in Scotland. It uses a ceramic filter when used in LONGER LIFE modus. The waters in Scotland however have a tendency to be brown (due to the peat ...
7
votes
2answers
399 views

What backwoods trick to get pure water produces the most safe water?

So I read this answer and I was wondering what contraption produce the most water when you don't have a water source? So what water trap produces the most water? Specifically, what should I do with my ...
13
votes
1answer
346 views

Will Iodine Tablets Ruin My CamelBak?

In the past, I have gone backpacking with some fairly expensive, heavy water purification tools. But the more I read about water safety in California's Sierras (here and here), the less I think these ...
12
votes
4answers
4k views

Where can I find an iodine crystal water purification product?

For years I used a product called Polar Pure for water purification when weekend backpacking. It was an iodine based solution, so not great for a thru-hike, but fine for a week or less. Specifically, ...
24
votes
4answers
6k views

Do iodine water treatment tablets have negative effects?

I've heard that iodine water treatment tablets can have negative side effects. Is this true? If so, what are some healthier alternatives?
10
votes
2answers
2k views

How do I desalinate seawater?

I know I shouldn't drink seawater (because of the salt it contains), but how can I desalinate it?
34
votes
3answers
18k views

Is drinking urine safe?

We've all heard stories about how people saved their lives by drinking their urine. Is drinking urine safe when there are no other water sources available? Can I filter it with a water purifier?