Originally Posted by jbohon
Rain collection is never a stupid idea. The small shed roof will not collect it as fast as the roof of your house might, but it's better than nothing. Here'a a link to a calculator that may help you figure out how much you can collect. (It's probably more than you'd think.)
But wouldn't evaporation negate the amount I could collect? Even if I fed the water to drums stored in the shed. I'm thinking it's not worth the effort and that space could be better utilized.