> Cool design, but it seems like something that should be done on a municipal level... It is already in some places - see reed beds: http://en.wikipedia.org/wi

> Cool design, but it seems like something that should be done on a municipal level... It is already in some places - see reed beds: http://en.wikipedia.org/wiki/Reedbed#Treatment_ponds http://en.wikipedia.org/wiki/Reedbed#Treatment_ponds