CO2 Regulator Question
Greetings! Been lurking around for the past couple of weeks, just signed up and this is my first post.
I am very new to planted tanks and so far have been doing a couple of mistakes here and there. Easy to correct but I just need a boost to correct my mistakes. My experience has been mostly on saltwater tanks and am very much into DIY's and mods. Though I have had freshwater tanks with big fish but that was years and years ago.
Anyway, this is in regards to pressurized CO2 systems on the cheap. I was about to do an ASA valve and needle valve paintball setup but I could not justify it's safety. I did buy all the parts needed but I was not convinced that it would work...PROPERLY. Though I did buy a cheap made in china ASA valve which was defective even before I used it.
So while looking scanning the internet for reliable regulators. I came across a post by one of the members here (Cold Mantis) wherein he used a "JACPAC" regulator. Used for pneumatic tools which uses paintball cylinders as a source for CO2. It is possible to regulate the outflow from 0-120 psi.
And by chance I managed to get a brand new one for less than $20. The only mod I did was take off the quick connect fitting and replaced it with a Swagelok needle valve rated at 3,000 psi so as to fine tune the output.
My questions are, to all regulator experts, at what PSI should I set the regulator? For now I set it at 20 psi at just under 1 bubble per second. And if you look at the second photo, on the opposite side of the needle valve is a plug. My concern with this regulator is that I can regulate the pressure but I have no idea how much pressure I have left. Can I install a second pressured gauge rated at maybe 2,000 t0 3,000 psi on that plugged fitting? I don't know if that is the high pressure side or not. I have a feeling it is but I'd rather be on the safe side.