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

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12
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3answers
2k views

Can a human survive in Saltstraumen or other whirlpool?

I am fascinated and afraid (at the same time) of whirlpools and water currents. I wonder if a average human could survive water currents or whirlpools or maybe even the Saltstraumen?
7
votes
1answer
37 views

Allergic to Neoprene and need water shoes

Really hoping someone else may be able to help me. I am very allergic to neoprene and am looking for some shoes to wear in water and in the pool. Almost all the shoes have neoprene in them -- so ...
8
votes
4answers
235 views

What is the safest and most effective additive to keep drinking water from freezing?

I know that the antifreeze used in fresh water RV tanks is non-toxic and can protect to -50F. Thinking Sugar might be a good choice I posted the question How to calculate how much sugar to use as ...
4
votes
1answer
557 views

How to calculate how much sugar to use as antifreeze in drinking water?

Sea water does not freeze until about −2 °C (28 °F) if you add more salt you can lower the freeze point to -21°C. We know from How much sea water can I safely drink? that drinking salt water is not ...
3
votes
2answers
179 views

Unfreezing cached water bottles

Here's a scenario I was faced with recently. We do a climb that involves going up to a mountain hut and sleeping there the night before summit day. There is no snow at the hut to melt for drinking ...
8
votes
4answers
2k views

What is the most effective means of melting snow with body heat for drinking?

The related question Is it safe to drink snow? tells us that in addtion to then normal considerations for any wild water source, you also need to consider how the snow may tip your metabolism into ...
10
votes
3answers
4k views

Is it safe to drink snow?

If it snows, is it safe to drink the water when it melts? What sickness can I get from snow? I am in Europe and would like to know for here, but other places would be interesting too.
6
votes
1answer
532 views

How much sea water can I safely drink?

Anyone who has played in the ocean knows getting a little sea water in your mouth and swallowing it will not kill you. Seawater contains salt. When humans drink seawater, their cells are thus ...
1
vote
1answer
87 views

What percentage of bacteria in water dies if it is boiled? How clean is it after boiling?

When you boil dirty water, how clean would it be? Is it drinkable?
7
votes
1answer
530 views

Rain soaked leather jacket- how to repair?

I have a genuine full grain 1.3 mm cow hide motorcycle jacket that was caught in rain. It wasn't a downpour but I was in the rain long enough for the jacket to be pretty wet, not just the surface. I ...
4
votes
1answer
311 views

How do I reliably diagnose my own dehydration? [duplicate]

Drinking too much (and wasting it) or insufficient water quantity can be dangerous. The current method that I am using to judge if I am doing it correctly is urine colour: clear white - if water is ...
7
votes
2answers
405 views

Advice on wild swimming in Ontario, Canada

I am pretty much a newbie when it comes to wild swimming, or swimming in rivers and lakes having only went once or twice. However, I'm an avid swimmer and have participated in several swimming ...
7
votes
2answers
142 views

How do I make sure my cliff-diving location is safe?

I like cliff-diving, but I am always scared that there might be a rock hidden in the water. If it is a popular spot, then I just trust that someone has already done the work, but what if I am going ...
11
votes
2answers
593 views

How to efficiently fill a bladder with water?

I normally use cheap, lightweight water bottles to carry my water when I'm hiking. However, sometimes I'm with people who use bladders such as a CamelBak, and I offer to go and fill water bottles, so ...
3
votes
2answers
145 views

Brown pot from boiling water

Lately, as I boil water in a steel pot, it is making the pots very dark brown, and the inner surface of the pots seems its changed to rough, scrubby. Can anyone help with this? Also, as I was ...
11
votes
1answer
398 views

Train yourself to need less water

I'm interested in doing multi-day hikes (i.e. backpacking) in the desert where water sources are not readily available, thus requiring one to carry in enough water for the duration of the trip. On ...
10
votes
4answers
697 views

How to stay hydrated with minimum water usage

A friend of mine asked a experienced long distance hiker, how to drink during such a hike. The answer was, drink 0.1l water per hour and then you are fine. Is this correct and can anyone add some ...
6
votes
5answers
762 views

How to freeze a water container without deforming it?

I like to take a frozen Nalgene bottle of water to my Bikram Yoga class. The problem is, every bottle I have used so far becomes deformed and, as can be seen in the picture below, the bottom bulges ...
12
votes
5answers
418 views

Why would I want a pressurized hydration pack?

I saw an ad today for a pressurized hydration pack. My first thought was "why?". I can't imagine a scenario would this would not lead to (a) more weight, or (b) greater risk of failure... neither of ...
9
votes
5answers
1k views

Reusing the same water bottle for drinking tap water

Recently, I've started drinking more and more tap water instead of buying bottles all the time (which is usually absolutely no issue in Germany). I like to use a bottle for that not fill a glass all ...
13
votes
5answers
1k views

Ration or consume water?

In a situation where you don't know when you will find water again, is it better to ration the water you have over time (and ever increasing dehydration) or to drink it to quench thirst as soon as ...
3
votes
2answers
135 views

Where can I find public water tap for cleaning/bathing in the Netherlands?

We are wandering around Netherlands (on foot, hitch hiking, bicycle). We don't sleep in camping site, we put our tent anywhere "in the bush". We are use to travel on this way in Southern Europe but ...
20
votes
3answers
5k views

Can you boil an egg in dirty water?

I'm going on a one day hike, and I want to cook an egg whilst on it. I'd like to avoid carrying excess water, and the route goes past a couple of waterfalls and several streams, so there is no problem ...
10
votes
4answers
300 views

How to effectively dry/clean the inside of water bladders?

After using water bladder, how to dry it thoroughly besides simply pouring out the water content so any remnant of water inside it is cleanly eliminated?
2
votes
1answer
124 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 ...
9
votes
1answer
662 views

Is it possible to 'moisture trap' from trees while thru-hiking?

I'm toying with the idea of collecting water from tree leaf transpiration, while hiking: Obviously, vegetation with larger leaf surface area (and certain types) would be better than others. But is ...
13
votes
8answers
2k views

How do you flavour your water on camping trips?

Always drinking pure water can be boring and tasteless, especially when you have to filtrate it or use sterilizer/purification tabs which might cause the water to taste really bad. What are easy ...
11
votes
3answers
2k 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 ...
18
votes
2answers
2k views

Can groundwater still be consumed if after boiling the water turns brown with an oily substance floating on top?

This weekend we went "pole camping". A pole camp site (dutch link only) is a camp site offered by the departments of forestry in the Netherlands and Belgium. It is very basic. What is offered is a ...
3
votes
1answer
170 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 ...
18
votes
5answers
2k 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
202 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 ...
7
votes
6answers
2k views

How safe is drinking distilled water?

Are there any adverse effects of drinking distilled water (possibly obtained melting snow or using other survival techniques like a solar still)? Maybe dehydratation, diarrhea...? Some people even ...
6
votes
8answers
883 views

Carry a larger water bottle or a smaller water bottle for backpacking?

I'm debating between carrying a larger water bottle and a smaller one. A larger one means I'll have to stop less to filter water, but it means I'll be carrying more, at least for a period of time. ...
8
votes
4answers
3k 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. ...
12
votes
4answers
522 views

Is cold shock response a real danger, if someone is used to cold water?

Various sources (mostly TV stations, at least in my region) are constantly warning about the danger of cold shock response, if someone goes to water too quickly. But on the other hand, Bear Grylls ...
2
votes
1answer
1k views

Is it safe to drink hot water? How hot can it be?

Many mountain hikers recommend drinking hot fluids, because they provide a lot of energy. According to the discussion "Does eating snow help dehydration?", the actual calorie gain is minimal, however ...
3
votes
2answers
248 views

What style of camelback hydrating systems exist out there?

For an incoming trip, I am considering buying a camelback hydration system. There are two options available at my local preferred dealer, and I would like some advice on which one to choose. The main ...
4
votes
1answer
602 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 ...
8
votes
3answers
286 views

How can I conserve water over long treks?

Is there any way I can balance out drinking water when taking a trek, or simply taking a hike to one of the local peaks around here? Even if I come stocked, I tend to end up run out of water close to ...
17
votes
3answers
1k views

Washing dishes with seawater or freshwater?

When backpacking in a coastal region, you sometimes have access to both fresh water (e.g. a stream) and salt water (sea, bay, etc.). If you do not treat the water used for washing dishes, what are ...
16
votes
3answers
733 views

What is considered a water source, and why is it recommended to camp so far from them?

I've read one one of the US national forest or wilderness websites that when camping in the wild, one should camp at a certain distance from a water source. Should I understand a water source to mean ...
9
votes
2answers
303 views

What to do with old hydration bladders?

I have two old hydration bladders, both of which are no longer usable (in one the cap is broken, in the other the internal bag is ripped). Spare parts appear to be unavailable. Is there anything good ...
13
votes
6answers
10k views

Is it safe to drink out of a rusty thermos?

I've got a thermos for coffee and/or water storage that I use on hikes and for bike touring since it keeps things hot for hours. However, it seems like the inside is rusting a bit. Is this safe to ...
8
votes
2answers
651 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 ...
14
votes
1answer
614 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
934 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 ...
5
votes
2answers
6k 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
168 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 ...