Another example of Israeli “out of the box” thinking. Eyal Yassky, CEO of Hilico, was frustrated when Mumbai slum dwellers had to drink dirty water during the monsoon. So, he and his friend Moshe Belilty developed a cheap, light, portable device that can collect a liter of water from 1mm of rain.
https://www.israel21c.org/portable-device-gathers-rain-for-clean-drinking-water/