"consumes less energy and is dramatically simpler than conventional techniques." I remember a video that shows some kind of filter (it looked like a plastic sh

"consumes less energy and is dramatically simpler than conventional techniques." I remember a video that shows some kind of filter (it looked like a plastic sheet). They were simply pushing water against it and you get clean water from salty water. I don't think it gets easier than that. However if I remember correctly the filter gets unusable after a while