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Also see The Science of Water
More n the Water class + Aquaculture class
Source Book
Source Book
of Alternative Technologies for Freshwater Augmentation in Latin America and the Caribbean
Growing Vegetables in Fridges
Growing Vegetables in Fridges
There's a dialogue in our FB group about this subject (click icon to go there)
See also
(as cooling water reduces evaporation and makes it more palatable in hot climates)
(if you need to heat water or move it with a temperature gradient)
More videos from this great permaculture designer couple here in YouTube
Ab anbar (Cold Water Reservoir)
Ab anbar (Cold Water Reservoir)
An āb anbār is a traditional reservoir or cistern of drinking water in Persian antiquity.
Many traditional water reservoirs (ab anbars) are built with windcatchers that are capable of storing water at near freezing temperatures during summer months.
The pressure gradient windcatchers create sucks out rising hot air from inside the shaft while the colder dense air remains. The superb heat resistant material of the walls of the ab anbar further create an insulating effect that tends to lower the temperature inside an ab anbar, similar to a cave.
The ventilating effect of the windcatchers prevent any stagnant air and hence any dew or humidity from forming inside, and the overall effect is pure, clean, cold water all year round.
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