Does dewaxing have to take place in a separate column? My material column has a dewaxing sleeve around it, it's only 1.5" diameter. My current understanding (thanks GW) is:
1) Flood from below with - 20°F solvent (and up through the return hose to the collection vessel) one columns worth
2) allow another columns worth in and close both the top and feed valves
3) soak 3 minutes
4) dump (crack slowly) ball valve below column
Suggest crack vent valve first to relieve pressure, before opening dump valve.
5) flood from the top one columns worth.
6) close ball valve
I run with both the dump and vent valves open during recovery, until I hit negative pressure.
7) place collection vessel in 85°F water
8) recover solvent to negative pressure
9) open ball valve to negative pressure at top guage
10) close ball valve
11) remove from water
I leave in 70F water during final recovery
12) vacuum collection vessel watching through sight glass until poofiness
13) slave like dog scraping cotton candy out of the pot.
Stick in the freezer for 30 minutes to an hour before removing and just whisk all but a light film into powder using a spatula. Pour that out and wipe or wash the remaining off the walls with ethanol and use for a tincture or recover the oil from it later.
Yes, no, sorta? Please fix/change whatever needs it GW. Thanks man