Quote:
Originally Posted by Evans, Marv
Thanks. The propane side must have a nozzle with a propane orifice on the Rodinator you used. Usually the oxygen supply side, especially if it's compressed air, is open several times the amount of the propane side.
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Your are correct, my memory failed me. From the instructions: open oxygen control knob one and one half turns from full closed position. Open propane control knob 1/8 to 1/4 turn from the full closed position. Injection time is 30 to 90 seconds depending upon soil type for ground squirrels. The mixture goal is less than 2% LPG and 98% compressed oxygen. The manual says the concussive shockwave is over 10,000 psi in the tunnel system.