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How does your regulator high pressure gauge read

463 Views 3 Replies 4 Participants Last post by  juvinious
I`m interested in learning how does the high pressure gauge read as the pressure drops on your regulator.
I`ve read on the forum from time to time by a few that once the pressure gauge starts to show a drop in pressure it`s not a gradual decrease in readings, some claim it drops from approx 700 PSi to zero rapidly with no in between readings.
Personally my experience is different.
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Sits at around 800 PSI until it starts to drop. (5lb tank). Takes a few days to drop to zero in my experience though.
The high pressure gauge on a 2 stage reg should drop very quickly as the residual CO2 will no longer be in a liquid state

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It is likely to be more gradual at cold temperatures, as in the drop will be observably more so, in my experience. Before I got into this hobby my co2 usage was in homebrewing and I had my tank in the fridge. I could notice the drop and have ample time (days) before I would take it to refill. As my aquarium tanks are sitting at room temperature once I see that needle move I usually take it right away to avoid going without co2. Again, this is probably subjective though, since I only pushed beer at around 10-15psi and in the aquariums I have it usually set to around 25-30 psi which would give me a less gradual drop.
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