I spend most of my time as a journalist finding things out. Sometimes, there are things I don’t entirely understand, and I have to do more research than I expected.

Sometimes, though, I am given more information than my schedule and brain can handle. That’s what happened when I asked how the new water filtration system in eastern Jefferson County works. I knew it involved water passing through the walls of a tunnel. I have been inside of the tunnel (which is now full of water). I like science, and I’ve written about science and engineering before. But when I asked Louisville Water Company program manager Kay Ball how the system works, I was hit with this intricate explanation (mp3).

Ball was very nice and she explained the system again (and again, and again) to me through her responses to follow-up questions. Here is the resulting story.

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