Sue:
With the two 5 LPM machines do you see any change in the center flame when turning on the outer flame? Are you using the two stud or the four stud Scorpion? What is your static output PSI? (i.e. 5 psi - 9 psi, etc.)
Presently use a Cricket which works well with boro. But was not sure if two 5 LPM machines would supply enough oxygen for both the inner and outer flames.
With two machines the Cricket performs very well, but I was assuming that by adding the outer ring that 10 LPM would be a little on the short side of things. Perhaps the addition of a holding tank would help with short bursts of outer flame use.
Let us know what your findings are......
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