Can you theoretically have an endless supply of water if you can find a way to collect the water that condensates on the outside of a water bottle?
In: Chemistry
To condensate the water you need to keep the water cool. So you need to cool the water with a heat pump like in a refrigerator or naturally cool it by for example pump it in pipes through the ground. Using the ground has a problem because you will heat it up so it only works a limited time.
So you need some energy source to keep it working.
Get in water from the air is what a dehumidifier does. It works fine but the energy requirement is extremely high.
In areas with very moist air the energy requirement is lowest but most are Brexit in places where there water that you access.
Location with dry air requires moist energy and that is the place you need water.
If you have access to saltwater then desalination requires a lot less energy and is done on the large scale today
The result is for the cost of the energy you need getting a truck to transport water will be cheaper.
Thunderf00t has videos where he explains the problem of this. There have been projecting like Waterseer that end up producing water with dehumidifier ins a very cost and energy inefficient way https://www.youtube.com/watch?v=LVsqIjAeeXw
So the idea works but is very energy and cost-inefficient. Where is could be reasonably efficient there will not be a water supply problem.
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