Caller: “Can you have someone clean the water fountain filter? The water comes out dirty.”

Me: “Are you sure it’s dirty? Or is it just cloudy? Sometimes we just get air bubbles in the filtration and it looks cloudy.”

Caller: “No. I put it in a glass and it comes out filthy.”

Me: “If you set the glass down for a few minutes–”

Caller: “Yeah, it clears up.”

Me: “Well then, those are tiny air bubbles. As long as it clears up, that’s just-”

Caller: “No, but it comes out of the water fountain dirty. People drink from there.”

Me: “What if you put it into a glass, and leave it for a few minutes?”

Caller: “Right! Its clean then! The glass cleans it!”

Me: “Actually, I don’t think it’s the glass.”