Uh, what's the point? You can make a massively more efficient survival desalination device using less materials by making a solar distiller. Maybe $2 for a piec

Uh, what's the point? You can make a massively more efficient survival desalination device using less materials by making a solar distiller. Maybe $2 for a piece of plastic and 2 buckets. Edit: I don't know if this would be the most useful way to provide water at scale. Dumping small water contraptions on a poor country may not be as sustainable or as efficient as investing in long term water systems.