Post #297986 by Humuhumu on Mon, Apr 9, 2007 7:09 PM

Don't know how much this helps, but here's a photo I took at the Reno Peppermill's a few years ago:

I took a look at the blown-up original of this photo, and while it's a bit blurry, it looks like perhaps there is a cluster of small (1/5" in diameter?) gas pipes that extend about an inch above the surface of the water.