I am trying to create a cheap and easy way to distill water. I learned through some research and talking with people that making a solar still is the best way. I really would like a cheap solution to the water crisis around the world and I think this is the best way. I wanted to know is I make normal solar still paint it black and have a mirror or some other way to focus the suns rays into the water, would this be a good way to heat up the water. I also wanted to know if this has been done before, I have looked around and not seen anything like it. If this is not a good and efficient way to distill water then do you know what is?