37 votes

What are the advantages and disadvantages of water bottles versus bladders?

Some advice given to me in an outdoor leadership course: As a leader, use water bottles rather than bladders. Make an obvious show of the pausing and drinking: stopping, taking off the pack, getting ...
Martin F's user avatar
  • 4,097
31 votes

Will drinking lots of water in the day(s) prior to a long trek mean I will need less water on the trek?

Liam's right that you can't/shouldn't overhydrate, but based on my experience it's easily possible to start the day under-hydrated. Maybe you're office-bound and don't drink enough water, or you've ...
Roddy's user avatar
  • 3,916
22 votes

Should I eat when I don't have anything to drink in a survival situations?

In a survival situation without water you will die in days and without food you will die in weeks. So in general, there is no need to eat in a survival situation. That said, the quick burst of energy ...
StrongBad's user avatar
  • 10.7k
20 votes
Accepted

How to trick my body/stomach into thinking I'm full?

I've used a few methods for this (being a larger guy who would backpack with smaller individuals). The biggest thing I've learned is that the mental aspect matters as much as the nutrition. Here's the ...
David R.'s user avatar
  • 539
17 votes

What are the advantages and disadvantages of water bottles versus bladders?

The main advantage of a water bladder is that it's easy to drink from. You can take frequent small sips without interrupting your activity. If tend to forget to drink enough water while exercising, ...
csk's user avatar
  • 4,374
15 votes

Should I eat when I don't have anything to drink in a survival situations?

I think the problem is the generalization. It depends on the food. Watermelon is surely not comparable to trail mix. Also I have my doubts about the idea that berries are a problem and a mash to ...
Erik vanDoren's user avatar
14 votes
Accepted

Hydration for pets

I actually answered a similar question over on Pets not long ago... Warm weather walkies and water... however you've asked in a bit more detail so here goes... How can I know that the dog is ...
Aravona's user avatar
  • 15.4k
14 votes

How to estimate remaining water in a hydration bladder?

This is a known downside with water bladders. In my opinion it's the largest downside of a water bladder compared to a water bottle. You don't know you're running low on water until you're completely ...
csk's user avatar
  • 4,374
14 votes

Would drinking normal saline help with hydration?

Yes, you can drink it. Saline of this sort (0.9%, 9 g/L or about 150 millimol/litre or 300 milliosmol/litre) is known as an isotonic solution as the salt concentration is the same as that in the body (...
bob1's user avatar
  • 9,968
14 votes

How to trick my body/stomach into thinking I'm full?

There is a saying in cycling that the best post-ride meal is "a bottle of (sparkling) water and a couple of sleeping pills. You need to loose some weight." While not very healthy, the point ...
Max's user avatar
  • 1,077
12 votes

What are the advantages and disadvantages of water bottles versus bladders?

One advantage to bladders that hasn't been mentioned yet: the less water they contain, the less space they take up in your pack. A 1L bottle takes up 1L of space whether it's full, half full, or empty....
Dan C's user avatar
  • 221
12 votes
Accepted

UK blanket bog peatland water - safe to drink?

EDITED TO ADD: Please also read the other answer by cbeleites unhappy with SX about the risk of heavy metal contamination. The information in my original answer (below) is still accurate regarding ...
csk's user avatar
  • 4,374
10 votes

How to estimate the volume a person sweats?

You basically have it, the formula is Your Weight at start - Your Weight at end + Weight of water consumed - Weight of water urinated --------------------------- = Water lost via sweat Then you ...
Charlie Brumbaugh's user avatar
10 votes

Hydration for pets

Dehydration in dogs is very similar to dehydration in humans. This link should give you an in depth answer. My main points are these: If the dog has a dry nose, dry gums and/or dry mouth it most ...
Chenip's user avatar
  • 101
10 votes
Accepted

Is it a good idea to drink blood to avoid dehydration?

While various sources suggest drinking some blood in emergency will help, the risks outweigh the benefits. From 5 Myths of Dehydration: Sure, there’s water in blood. But whose or what’s blood are ...
Rory Alsop's user avatar
  • 24.9k
9 votes

Should I eat when I don't have anything to drink in a survival situations?

Eat. Because metabolic water: Metabolic water refers to water created inside a living organism through their metabolism, by oxidizing energy-containing substances in their food. Animal metabolism ...
James T Francis's user avatar
9 votes

Will drinking lots of water in the day(s) prior to a long trek mean I will need less water on the trek?

Not at all. It only takes a few hours for water to work its way from your gut into your system, after which any extra simply goes through your kidneys and out the other end. However you can ...
Graham's user avatar
  • 2,229
9 votes
Accepted

Does a chewing gum really help in keeping mouth moist?

It's perfectly possible for both to be true: it moistened your mouth but doesn't help with hydration The act of chewing stimulates saliva production, so your mouth is less dry. But that wastes a ...
Chris H's user avatar
  • 26.3k
8 votes
Accepted

Adding extra hydration to a CamelBak backpack

Looking at the product, I don't quite comprehend why it would seem difficult to add a second reservoir, unless you aren't talking about a second hydration pack itself. I think I trek around in ...
WedaPashi's user avatar
  • 31.7k
8 votes

What are the advantages and disadvantages of water bottles versus bladders?

I'm not a big fan of bladders myself but use them at times. The main reason is that I find it hard to drink enough - although they're hands free, the flow is too low to get enough if a rare quick ...
Chris H's user avatar
  • 26.3k
7 votes
Accepted

How should I regulate hydration on long hikes in hot temprature?

The amount of water you require can vary a lot depending on the conditions and your level of exertion and conditioning. Dehydration can affect your physical and mental performance quite quickly so it ...
Chris Johns's user avatar
  • 6,202
7 votes

Will drinking lots of water in the day(s) prior to a long trek mean I will need less water on the trek?

If I know that I am going to be trekking over the weekend, does it help if say from Thursday, I start drinking more water than I usually do? This clicks my mind because I spend the whole day in air-...
cbeleites unhappy with SX's user avatar
7 votes

Hydration for pets

To add a little to the excellent answers already present: another way to tell dehydration in a dog is to (gently!) grab the scruff of its neck, raise the skin a bit and let go. If it returns back to ...
Angew is no longer proud of SO's user avatar
6 votes
Accepted

Emergency use hydration products - effectivness vs cost

I can't say I have any experience on these specific products, but I do have quite a bit of experience of diarrhea in an environment where you need to manage it yourself. I was fortunate enough to ...
imsodin's user avatar
  • 21.8k
6 votes

How to trick my body/stomach into thinking I'm full?

I suspect those bars don't go as far as you think. Comparable ones I've had have only been about 300 Cal each so 4 of those in a day adds up to rations on which you can survive for a while but very ...
Chris H's user avatar
  • 26.3k
5 votes

How can I tell if I am dehydrated or have low electrolytes (need salt, etc.)?

Very Hydrated (0 hours without drinking): No obvious signs Transparent Pee Normal (3 to 4 hours): Moderate Thirst Normal Saliva Normal Mouth Light Yellow Pee Moderate Dehydration (1 to 1 1/2 days)...
Chris's user avatar
  • 51
5 votes

Will drinking lots of water in the day(s) prior to a long trek mean I will need less water on the trek?

Water intake before the trek is just one of the factors that allow one drink a little bit less during the first day; more importantly, the same factors let you start the trek with much more energy and ...
Jirka Hanika's user avatar
5 votes
Accepted

Are there plants (for instance berries) which lead to dehydration if eaten?

Are there plants (for instance berries) which lead to dehydration if eaten? I'd wager that for most people in practically any reasonable situation you would encounter in the outdoors other sources of ...
Erik's user avatar
  • 9,668

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