What are we drink? / communication design

You know that that glass of water that you drink is from where?
The glass of water in the picture was full of pollution and wastes, not be clean.
I want to say something by this poster that everyone probably becomes the culprit(home waste water) of water pollution. So we should more concern the headwaters pollution of whole environments problem ,and don't be blindly lets the vicious cycle continue to break our health.