CLEAN : Toilet to tap gains appeal in drought parched California

The video discusses the importance of water supplies that are independent of the hydrologic cycle, ensuring availability regardless of rainfall. It explains the reverse osmosis process, which removes salt from water, and highlights the need to add some salt back for taste. The video also emphasizes that water molecules on Earth have existed for 4.5 billion years, having been part of various life forms. The process results in water quality comparable to or better than bottled water.

What new insight or understanding did you gain from this video?