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Fresh water from the seabed

03.03.2004

In the Mediterranean Sea near the French city of Menton, 800 meters from the coast, at a depth of 36 meters, a source of fresh water was found gushing from the seabed.

The existence of such underwater keys was reported by ancient authors. Now there are more than a thousand such sources all over the world. But the source near Menton is interesting in that it was first exploited to supply the city with drinking water.

For fear of disturbing the source, they did not drill it and turn it into a well, they simply put an anchored metal cap with a diameter of two meters and a height of ten, connected with a flexible hose to the surface, above it. Fresh water, as lighter, rises into the cap.

The water pressure at depth is so great that pumps are not needed. Above the surface of the sea, it beats like a fountain, one hundred liters per second. But under the cap, sea water seeps in a small amount, so a weakly mineralized drink is obtained (less than a gram of sea salts per liter). Such water is suitable for irrigating plants, but it will still be desalinated for drinking.

Meanwhile, a thousand times more powerful freshwater source was found underwater off the coast of Syria. The issue of its arrangement with the same system is being considered.

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