On Mon, 6 Aug 2007 12:39:40 -0700, "SteveB"
wrote:


"Don Foreman" wrote

The 95% oxy 5% propane subterranian boom works a lot faster. I
don't know why the mix is so oxygen-rich, but that seems to be what
works in practice. Ignition is done with a robust and fairly powerful
spark, a piezo-popper apparently is not sufficient.

I'm working on such a device as we speak. I already have a couple of local
ranchers interested in seeing it when I get it working. Hey, I'll trade you
some steaks for rodent eradication ...................

Steve

Keep us posted, please!

What are you planning to use as an ignitor. I'm not going to snipe,
I'm really interested.