Linked Questions

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1answer
240 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 ...
56
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4answers
191k views

How long does water need to be boiled for to kill all bacteria / viruses?

This has come up a few times in a few other questions, but I've heard varying opinions from different people in a number of answers and comments on here - some saying that just boiling for a moment is ...
29
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6answers
14k 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 ...
32
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4answers
40k views

What are the different methods to purify water?

What methods can I use to purify water? And what's the difference between those several methods (safety, duration needed, ...)?
26
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4answers
3k views

Why are people so worried about Giardia?

Everyone I have ever been camping with seems to have an unwritten rule never to drink from streams no matter how clear they might seem, for fear of Giardia. I have also heard people telling about ...
29
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4answers
20k 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?
16
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6answers
1k views

Tips for a novice backpacker

I would like to get into backpacking and make 2-3 day backpacking trips in moderate climatic conditions in mountainous terrains (mid-Atlantic U.S. or Central Europe, spring-fall). I am looking for ...
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5answers
10k 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. ...
18
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4answers
2k views

Formula for rough amount of water to carry on hike?

Is there a formula which can be used (I'm thinking one that gives amount of water needed factoring in time or distance covered and temperature) to roughly work out the amount of water that needs to be ...
17
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3answers
6k views

Is drinking water containing dirt harmful?

I noticed that if I collect water from a stream dense of small debris/thin mud, if I keep the water bottle close to the surface, while it takes a longer time to fill the bottle, the water is cleaner ...
16
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3answers
29k views

Water filters - why sand and rocks?

Saw a video on youtube where some guy made a water filter out of a bottle, charcoal, sand and little rocks. He commented that since the charcoal is very porous it's great for filtering. Then, after ...
2
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3answers
818 views

When should I boil water before distilling it?

One of the surest ways of purifying water is distillation water is boiled and only things that evaporate at or below 100C are captured. This does lead to the potential issue of things like petroleum ...
6
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1answer
684 views

What are the most likely causes of unfilterable water contamination in upland UK areas?

I have a new water filter, which removes bacteria and protozoa. It's tempting to imagine that I can now go around drinking from whatever revolting-looking puddles I come across, but I'm mindful that ...
2
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1answer
145 views

How much water filtering is necessary in the USA?

I'm gearing up to do my first solo backpacking trip and am looking to get a new water filter. From my research it sounds like most folks say that it is a good idea to filter bacteria and protozoa but ...