Is there an inexpensive way to change to using the smaller tank
(that I know is available), just for these instances. Is there a
different regulator that will work so I can use the smaller tank?
Any info would be helpful.
The fitting should be the same, but bear in mind - an acetylene tank
can only output so much gas. If the torch requires acetylene flow at
a rate faster than the tank can handle, you’ll end up sucking some
acetone out with it. This is because on the inside of the tank
there’s sort of a honey comb structure, and the acetylene is
dissolved in acetone. This is because normally, if one compresses
acetylene much above 15psi it has a propensity for exploding.
It’s important to make sure that the tank you use can supply enough
gas to run the torch, or you’ll only be able to run the torch for a
few minutes, have to shut down for a bit, then start up again.