30 years is a long time for a regulator, and I suspected that was
the problem. For the Acetylene B tanks, or any tanks, I strongly
suggest that you acquire a dual regulator; one that reads the
pressure in the tank and the other in the line. A line regulator will
tell you need to change your hose, and if you have had that regulator
for 30 years, I bet your hose needs changing too.
Old rubber will crack and degrade over time. You might not do
anything to it, and it’s not like a car, hose, but humidity, with
changes in dryness and humidity, while you might not feel the subtle
changes, over time can crack and damage a hose, just slowly.
Last week, the safety expert from Airgas, the company that bought
out Linde, was at my studio looking over my tank, hoses, etc. I’ve
been working with this person for a long time, and he is THE expert
for safety for this company. I will inquire about the Prestolite
regulator and its position when the tank is bled and idle. Regulators
with a T bar ABSOLUTELY must be backed out when the line is bled out
When you run a school like I ran Metalwerx, our number one issue was
safety, for our students, our instructors, our community of
metalsmiths, staff and visitors.
I cannot stress safety enough when working with gas. That doesn’t
mean you have to be scared, but be vigilant and informed. Actually
I’m more scared crossing the streets in Boston then having a full
tank of Acetylene in my studio!