FINDING DRINKING WATER AT SEA
This blog contains information on how to survive by
finding drinking water in the open sea and ocean in an
emergency situation, also you will find useful tips on how to desalt seawater
and evaporate it.
Finding water is more important than finding food, because without food you can
live for weeks, but without water you can't live more than three day. Your
survival in the open seas depends upon your ability to use the available
survival equipment, and your special skills to apply them to cope with the
hazards you face as well as your will to survive. But most importantly your
ability to improvise, because every survival situation is different, so think
and improvise by taking advantage of what you have available to you.
Finding Water in the Open Sea
The lack of drinkable water could be a major problem on the open
seas. Seawater should never be ingested in its natural state. It
will cause an individual to become violently ill in a very short period of
time. When water is limited and cannot be replaced by chemical or mechanical
means, it must be used efficiently. Similar to being in the desert, conserving
sweat not water, is the rule. Survivors should keep in the shade as much as
possible and dampen clothing with seawater to keep cool. They should not over
exert but relax and sleep as much as possible.
Tips when Looking for Water in the Open Seas
- Don't
drink seawater (it will only make you thirstier).
- Conserve
sweat not water (relax and sleep as much as possible).
- Don't
eat unless you know you have water available.
- Make
good use of your fresh water.
- Collect
rain water in containers or anything you can find.
- Collect
dew at night or when it's foggy. Use solar stills as well if you can.
- Blue
ice is safe to melt and drink.
- Suck the bones of fish and eyes (they contain water).
- Improvise with the tools you have available to you
Even though you're surrounded by water in the ocean, finding
water that you can drink is hard. So if you have food, don't eat it because
digestion requires a lot of water. If you are low in water and rationing
yourself, you should avoid eating until you find water. It is possible to
survive much longer without food than without water.
The minimum amount of water considered necessary to stay in good
shape is 1.3/4 pts (1 litre) per day. It is possible to survive with 2 to 5 oz
(55 to 220 centiliters) per day. It's important to note that this amount of
water is very small for normal situation, and can weaken the body overtime, but
it that's what it takes to stay alive, so be it. That's why when you will be
surviving at sea for an unknown duration of time, it is necessary to ration the
water to the minimum needed to survive.
You don't need to drink much water on your first day because
your body still contains much water. For survival situation only:
It is recommended to decrease your water ration progressively. The first 2 to 4
days you should drink 14oz (400cc). After you should reduce to 2 to 8 oz daily.
This of course will depend on the climate, whether it's very hot or very cold.
Symptoms such as discomfort, absence of saliva, cracking of lips and weakness
are normal. If delirium starts, the victim needs more water. (This rationing
might not be healthy, but unless you find alternative source of water you might
have to follow it to survive).
If you must eat, then you should first eat your carbohydrate
food (sugar and starches) and not proteins (unless you have enough water).
Proteins requires much more water than carbohydrates. So avoid fish and dried
food if short on water.
If it rains, you can collect rainwater in available containers
and store it for later use. Storage containers could be cans, plastic bags, or
the bladder of a life preserver. Drinking as much rainwater as possible while
it is raining is advisable. If the freshwater should become contaminated with
small amounts of seawater or salt spray, it will remain safe for drinking. At
night and on foggy days, survivors should try to collect dew for drinking water
by using a sponge, chamois, handkerchief, etc. Drink all you need when it's
still raining, but if you have been on a rationed diet, drink very slowly as to
not vomit (a normal reaction after forced drinking following dehydration).
Solar stills will provide a drinkable source of water. Survivors
should read the instructions immediately and set them up, using as many stills
as available. (Be sure to attach them to the raft.) Desalter kits, if
available, should probably be saved for the time when no other means of
procuring drinking water is available. Instructions on how to use the desalter
kit are on the container.
Only water in its conventional sense should be consumed. The
so-called “water substitutes” do little for the survivor, and may do much more
harm than not consuming any water at all. There is no substitute for water.
Fish juices and other animal fluids are of doubtful value in preventing
dehyration. Fish juices contain protein which requires large amounts of water
to be digested and the waste products must be excreted in the urine which
increases water loss. Survivors should never drink urine, urine is body waste
material and only serves to concentrate waste materials in the body and require
more water to eliminate the additional waste.
In Cold Regions: In polar regions, ice
is easily collected from icebergs. The surface of the ocean might also freeze
and provide ice. If the ice is old enough (a year old. It is usually blue-gray
like on glaciers), it will have lost its salt concentration. You can melt it to
drink, or just suck it. Be sure to taste it first to make sure it isn’t salty.
Also you might be able to collect ice on the surface of various equipment. When
very cold, you might also be able to freeze sea water in containers. The salt
will freeze last and concentrate in the middle. You can then break the side and
separate it from the center to get low saline water.
In Dry Regions: Rain is very scarce in
dry places, however nights might bring much condensation. You can collect the
drops of condensation with a canvas or plastic tarp (or sail) set as a bowl (to
cover the maximum surface area, make sure the water collected gets funneled the
proper way to be stored. (don’t forget to rinse the fabrics.
Again, don't drink seawater, the temptation to drink seawater has always been greatest for sailors who have expended their supply of fresh water, and are unable to capture enough rainwater for drinking.
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