my current preference is a sleeved column with DI+iso (or denatured alcohol) slurry. simple and effective.
the “stock” bizzybee method was to use a jacketed column and slowly run liquid CO2 through the top jacket port with the bottom port as a vent. there was a 5 (maybe 10?) psi relief valve mounted at the entry, since the CO2 would usually form dry ice in the jacket and plug the vent port. after seeing a few implosions on IG we decided that it was no longer worth the risk. the internal column on his jacketed dewax vessels is thicker now as a result.
i’m not sure if boris has changed his dewax tek - the bizzybee we have is about 2 years old.
as far as the production time thing goes, i would love to be able to do it for every run, but my situation doesn’t really allow it. my batches are usually 6-12 columns apiece. allowing extracts to slowly purge doesn’t prevent me from purging other extracts, but every hour of dewaxing is several pounds of material that could have been processed that day. i’m personally not a fan but it’s the unfortunate reality of my situation.
i’ve been working on a faster dewax tek with some success but it’s still very incomplete and seems to pull some THCA as well. will provide more details when there is something worth providing.