How-To: Hand-Pumped PVC Foghorn

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c't – Magazin für Computertechnik, and The Wall Street Journal.

2400 Articles

By Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c't – Magazin für Computertechnik, and The Wall Street Journal.

2400 Articles

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Instructables user rog8811 set out to build a functional replica of an old-timey manual boating foghorn using hardware-store stuff. He shows you how to build the basic horn by cutting apart a PVC sink trap and hacking it onto an off-the-shelf air pump. Then he does something I’d like to see more of in my own and others’ project tutorials—he encourages you to make the project your own: “Go mad! Get as many plumbing parts as you can screw and glue together to make the sound path long and wider.” It sounds on both strokes of the pump handle cycle.