Ok so take a 1.5" spool and one endcap with a ball valve ptfe lined
Ad 5 grams of bho and 2 grams of butane cap the spool
Place spool in oven at 90. -125 C
And decarb for 30 min
Pressure inside the spool by heated butane will not exceed 375 psi
The 13% decarboxilate released CO2
Should on this volume not make much diffrent
But one could weigh on gram of dry ice and cap the tube to see what that does to pressure
Some one should realy do this
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