Inconsistant regulator help

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Tango374

Feeder Fish
MFK Member
Aug 3, 2005
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I can't figure it out and would appreciate some help here.
This is my first go around at pressurized CO2. Been talking my time putting it together. And I was hoping today would be the day to start it up but I'm running into a problem that is most likely a "no-brainer".

On my start up, I slightly opened my bottle valve with the airline hose disconnected from the needle valve. Needle valve is all the way open. Regulator valve is turned counter clock wise until loose. I had no air coming out. I then turned my regulator valve clockwise until I had a slight amount of gas hissing, just enough to give me 10psi on the regulator. I then closed the bottle valve and hooked up airline hosing coming off of my bubble counter to my needle valve.

Opened it back up. I got good output. But my issue is I loose pressure. Pressure within a few minutes on my regulator drops from 10psi to almost zero and my bubbles per second drops to like 1 bubble per 6 or 8 seconds. I adjust the needle valve, nothing happens. I adjust the regulator valve back up to 10 psi and I get good gas flow again.....but within a few minutes it again drops down to almost zero.

My question is how am I able to keep this pressure at 10psi? How come this pressure is only lasting 2 or 3 minutes before loosing it?

It's a Smith Regulator with an Ideal needle valve.
 
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