Emergency Desalinator

If an old drunk can use a loaf of bread and denatured alcohol to get his end of the month booze fix, why not.
 
ttmott said:
Take a look at the Katadyn Survivor 06
Click to expand...

This appears to be pump driven, I am thinking. I don't really understand the science behind desalination. Guessing that it is pressure driving water through a membrane.

The one I posted (once again I am guessing) I think uses the pressure of water depth to force water through the membrane. Down side on what I posted is you have to be 1,000 feet of water.
 
It takes a lot of pressure to force water through the membrane. Plus, there is water that needs to bypass so the brine gets sent overboard. My installed water maker runs at around 800 PSI. These small hand operated ones become a problem as they need to be "pickled" continuously or the bacteria becomes a destroying factor.
 
Where do you get 1000 ft or water. Nowhere I boat is even close to that
 
What kind of survival situation would you expect to find yourself in? Do you carry a life raft? Do you boat in areas where rescue could be days away?
 
I have never lost sight of a shore line no matter where I go. I have to see land.lol
 
A high pressure RO desalination tis the most compact and useful. If you are looking for a better alternative there really is not anything that will beat it. An evaporative desalination system is not near as efficient and takes far more space. https://www.nature.com/articles/s41467-020-14366-1

While there are many ways to desalinate water none come easy. I built an evaporative desalination system using plastic wrap and string with a pool of Chesapeake seawater in a pan. It produced one cup of fresh water in two days. Barely enough to wet your whistle.
 
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