If It's Brown, Drink It Down; If It's Black, Send It Back. Edit Meaning

1.

A cautionary guide to the water of Springfield USA wherein residents such as the Simpson family reside.

Billy Corgan: Hey, Homer, looks like our next stop is your hometown, Springfield.

D'Arcy: Is it true that we have to bring our own water?

Homer: We got a little rule back home: if it's brown, drink it down; if it's black, send it back.

See simpsons, water, smashing pumpkins, homer simpson