Hi @ steenit, outstanding hunt.
The idea is great, uses sea water and solar energy for to bring to boiling water and (just a couple of degrees above the boiling point), the part of the water that drains is pure water separating and the rest is returned to the sea.
The procedure is simple and logical.
After all, the inventor has been dealing with this project for 10 years, which is enough to talk about the preparation of this project.
Water from seawater is the safest source of clean water.
We know how much the surface of the earth is occupied by the oceans and the seas.