The Eliodomestico Solar Still was designed by Gabriele Diamanti, who was inspired by his world travels to try to help with global water scarcity. His solution is an open source water still made primarily of pottery.
It consists of two ceramic pieces. Inside the top piece is a black container into which salt water is poured. The sun heats the container, turning the water to steam. As pressure builds, the steam is forced down a tube into a container in the lower piece. There it condenses against the lid and collects in the basin of the container.
The Eliodomestico collects about five liters (1.09 gal) of fresh water per day and costs about US$50 to build with no operating costs.
