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Survival and Preparations Long and short term survival and 'prepping'. |
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#1
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Near Salt Water ? Water Supply
https://www.fastcompany.com/1670546/...ater-drinkable
they say this is $50 but I haven’t seen where it’s bought, but the idea of about 100 oz of fresh water a day from salt water for $50 is pretty good. |
#4
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Thought it was a little less that a full gallon a day. Considering the cost you could afford one per person pretty easy. Sun isn’t great in northern environments say Oregon to Alaska but decent CA and south.
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#6
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Agreed.
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#7
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The idea of unlimited water is comforting, and it is just a short hike through the dunes, but I think I'm going to focus on the creek as a first backup, with a rain catch behind that. Some mornings, the redwoods and firs catch so much moisture they rain on the house even without actual rain.
Good idea to have multiple backups though. Water is super important. |
#9
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I have seen a similar device that is very simple. It's made of clear plastic in an inverted cone shape. Seawater is placed in the inner part and the device is put in the sun and the water evaporates. It then condenses on the inner walls and runs down and is caught in a "lip" and is then drained out. As I recall they were designed and made by some humanitarian NGO for use in Africa. The cones are lightweight and portable.
Kind of like this: an Aquamate Solar Still.
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#10
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Quote:
https://en.m.wikipedia.org/wiki/Desalination If there are volatile contaminants of similar or lower boiling point they will carry over.
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#11
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I went on eBay and was able to buy a Katadyn hand operated desalinator. Mine was made for an 18 man liferaft. It has been so long, but I recall it only cost me about $200. I then sent it back to Katadyn for refurbishing which only cost me around $125.
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#12
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The water turns to steam, cooled back to a liquid, collected, and made available for you to drink. Other contaminates like salt are left behind. That being said, there are some contaminants that will evaporate before or at the same temp as the water so those will be in the water you drink as well unless you filter that water as well. However if you are in a survival situation, drink the water once distilled.
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#13
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The next logical question: What on earth do you own where you stow an 18 man life raft!
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#14
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This entire line of thought is a bit useless. You will NOT be able to keep a family of 3 or 4 alive on 1 gallon a day if that is the ideal performance of the distillery.
Using salt water for survival is notoriously hard. It will not be a viable solution if all the water in the area is cut off. |
#15
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I don’t understand why the state isn’t pursuing desalination on an industry level.
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#16
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#18
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Desalination on industrial scaleis very energy intensive. They typically use reverse osmosis instead of distillation (which is even more energy intensive).
Passive solar distillation is great for small scale (family size needs). Several methods explored https://www.sciencedirect.com/scienc...64032116301800 |
#21
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@$50
Well since they are $50 one per family member would be pretty reasonable, and likely a good solution.
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#22
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Thanks for the share!
Do you know where one might be able to buy one of these? Also, would you be able to use it for other non potable sources of water to make water drinkable or something?
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Acts 2:38 Last edited by MasterrEugene; 09-17-2021 at 7:20 PM.. |
#24
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Sea kayakers have figured out how to make fresh water.
https://nswskc.wordpress.com/2010/03...kers-7778/amp/ |
#25
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