Attempting second pass THC short path

[IsolationChamberLab]

You got a really small flask, this pump should be more than sufficient:

Best value vacuum pumps for spd

Super budget option for 2L - Amazon kozyvacu 8cfm 2-stage rotary vane for under $200. Advertised at 25micron ultimate vac but it pulls down to single digit micron on my bullseye.