Thanks, suspect ours is a single stage. The output pressure rises dramatically as the bottle empties. So much so need to turn the knob 5 or 10 revolutions to bring the output back down.
From: Ed Trombley [mailto:ETrombley@munn-reese.com]
Sent: Friday, May 19, 2017 12:03 PM
Subject: Re: [CRTech] Ntrogen Regulator
There are 2 stage and single stage regulators. The 2 stage regulator will hold its output setting as the gas bottle goes empty. The 2 stage regulator costs more money than a single stage regulator. Some single stage (low $) regulators will let the output level run up to a much higher pressure just as the gas bottle goes empty. So the last 50 pounds in the bottle goes poof into your feedline quickly.
ET The other old curmudgeon on the list, not named Tom