This should be relatively easy…
I think @GroovyOctopusLabs thought you were using a closed loop cause you made a thread about one the other day and said you had purchased one.
Recovery tank buried in dry ice…under full vac…remove valve stem from tapper. tap cans into buried tank. Shoot 6 cans in at a time. Wait 10 mins for the gas to condense and repeat. Shouldnt take more than an hour to fill 25lbs. You will still need to distill this gas…
IF YOU DO HAVE A CLOSED LOOP: this process is much faster shooting into the collection tank…then recovering at 80F which now your gas is distilled too…Easy peasy.
you had a homie helping you pick out the closed loop parts…where is he now?? im sure if they can help pick out a system…they can help you with your initial extraction runs. No?