It's easy to take fire hydrants for granted and assume that they're all the same. But there's a code that dictates the colors ...

The test is used to determine the water flow rate available from a hydrant for a fire emergency, borough officials said.

A Jan. 11 Instagram post (direct link, archived link) claims to show a costly and empty rainbow-painted fire hydrant across the street from a row of homes engulfed in flames. “No water ...

These days, you often see fire hydrants in multiple colors: green, silver, yellow and combinations. This isn’t just for aesthetics.