Regulator and tank in the freezer

[craigevo]

Interesting, so this may be a dumb question but what are they actually saying in the end:

So, you set to 12 and after 4 hours is gone up to 14/15.

So after this 4 hours - whats the ACTUAL pressure then ? 12 or 14/15 ?

I presume they mean it was actually 14/15 when set to 12, and its still 14/15 after the 4 hours ? so the pressure hasnt actually changed during these four hours but you have to wait a while before being sure of the real pressure.

[atomicpunk]

They are saying that there can be some creep in the actual pressure over time. It still reads the actual pressure, in this case 14-15. With the parts of the regulator cold it may take some time for parts to equalize and give an accurate final reading. I think the diaphragm of the regulator is rubber so that could explain it. But I have not seen this actually happen. If I change the setting and come back later I have not noticed any difference. I keep my tank and regulators inside my freezer.