Oilyjoe said:

i got a 2lb closed column extractor from best value vac and it's doing a strange thing, we pull a vacuum on it (29hg)and fill it with butane and let it soak for a few minutes, then I ease the valve open and it starts to flow good for a few secs then it starts sputtering, forcing me to close the valve for a minute and when I open it back up it flows for a sec then sputters, I tried running it like an open blast and once it was flowing I closed the top valve and it kept flowing the rest of the run. Not really sure what's going on but I think it's either the column is to warm bc I have no dry ice yet and can't fit the damn thing in my freezer so the tank can't put enough pressure into the column to keep it liquid at 60 deg. Or air got into it from the hose between the tank and column, even tho I vaced the hose I think the valve on the hose is loose, idk just hoping someone can shed some light on this maybe inform me of the pressure the tank is putting out vs pressure the tane needs to stay liquid and what I see on the gauge( after filing the column with tane it reads 15ish lbs) and what the dry ice can do for it. It's a 24 lb r600 tank maybe 30 lb

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