Questions relating to obtaining, carrying, or purifying water for use during outdoor excursions.

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14
votes
1answer
713 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 ...
10
votes
3answers
1k views

Soft or hard drinking bottle?

When choosing a water bottle for hiking, a very distinct choice I can make (amongst all the other types of materials and hardiness, size and so on) is weighing up whether to purchase a "hard" plastic ...
6
votes
3answers
7k views

Replacement tap for Coleman 5 gal. water carrier

We have couple Coleman 5 gal. water carriers. They are nice sturdy canisters, but they have major weak spot: their taps are of poor quality and easily broken — both ours are, and seems like a lot of ...
13
votes
3answers
6k 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, ...
7
votes
3answers
180 views

Finding water in the dry wilderness

If I'm in the wilderness in a dry, hot climate without much vegetation and I'm running low on water, what land features and other potential signs can I look for to guide me to a drinkable water source?...
13
votes
3answers
963 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 ...
11
votes
2answers
2k views

Is it a good Idea to drink grape sap if you have no clean water?

In spring, the grape vines are so full of watery sap that a cut from my pocket knife causes it to trickle out fairly fast, and it can be collected in a container. Someone told me that it is a good ...
10
votes
1answer
297 views

How to tell if water is likely to have cryptosporidium?

I often use CLO2 (for example this product) to treat drinking water when I’m backpacking and boiling is not convenient. The instructions for the product say that the dose should be tripled if the ...
10
votes
2answers
470 views

How much fuel to carry for melting snow?

I'm using a multi fuel stove (MSR Dragonfly) for a 10 day ski tour, how much fuel should I allow to provide sufficient water for cooking and drinking. Meals will be mostly dehydrated just-add-water ...
26
votes
4answers
11k 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?
21
votes
8answers
19k views

How to keep water cold in hot weather?

When doing outdoor sports like hiking or biking I'll always take a lot of cold water with me. I love to drink cold water and I feel more refreshed compared to drinking warm or not-so-cold water. But ...
36
votes
11answers
8k views

How to carry water in freezing temperatures?

When backpacking in freezing weather, water in a canteen often turns to ice. I am looking for a canteen that Will not burst when the volume of water increases due to freezing Will make it possible, ...
15
votes
2answers
588 views

Where are good places to look for water sources when I have run out on a multi-day hike?

Luckily this has never happened to me, but even the most prepared hiker can often get themselves into difficulties if they run out of water. My question here is in your experience in remote arid ...
18
votes
8answers
7k views

How do you prevent mold in CamelBak hydration bladders?

When using a CamelBak (or other hydration bladder system), it is easy for mold to grow if the bladder is left sitting with water in it. What is the best way to avoid mold (or other nasties) growing ...
12
votes
2answers
6k 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?
44
votes
4answers
24k 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?
24
votes
9answers
13k views

How much water should be carried while hiking in the desert?

I live in the Arizona desert, and during the summer, despite my best intentions, I always seem to end up doing some hiking in the summer heat. What is a good formula to figure out how much water I ...