Thanks for the reply. It is popping while I am trying to keep the
flame on for melting purposes, not when I am trying to turn it off.
When I turn it on, I always turn on the fuel first then add the
oxygen, and when I turn it off I turn the oxygen off first then the
fuel. I'll get a flame going then
shortly afterwards it pops off.
Make sure all the connections on the torch are tight and that the tip
is on tight. Also, be sure the fuel line is purged of any air (if
this is a new unit or an old unit that has been laying around
unconnected to the regulator and gas bottle). Also, if you are
trying to use an Aceytlene torch with propane gas or visa versa, this
could be giving you problems (one can use Oxy/Act torches with
Oxy/Propane, but it is much more difficult to adjust to a good flame
until you learn how).