Welding with gas

admin

Ok I need to ask a question that may make sense to the experienced.  I am new at welding and rec'd a WeldPak 3200HD (lincoln) for my birthday.  I am very happy with it so I decided to try the C25 gas.  Pretty cool.  My question is that I find that when I make a weld I am hearing a popping sound as I am welding.  the weld looks good, but is this popping sound normal, or am I doing something incorect.  I have set the pressure according to the manual.  My next question is that when welding with C25, can I weld up as in not flat on a table or is not recommended?  I ask this because of a molten ball falling to the groung from the tip, thanks to gravity.I hope what I say makes some kind of sense.  I hope some one can steer me in the right direction.  ThanksMike