Seems like a bit overkill. Why not just extract fully butane and cryo temps? 
terp retention + less processing + cleaner end product.
First attempt. Looks a bit cloudy due to the frost on jar from freezer.
Grounded material
-10c etho and biomass straight out freezer
1min soak/stir
Vacuum Buchner:
(Bottom)
2x filter paper 2.5u
1um disk filter
filter paper 2.5u
20g B80
filter paper 2.5u
20g AC
coffee filter
(Top)
Decent. Gonna try next batch with dry ice (-30,-40) and an additional 20g AC and see if I can get a bit more clarity doing only a single pass filtering.
Nice! If you can keep your extraction temps under -20c you wont pull any lipids!
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Is that so ?
Interesting since I have been so focused on 1 singel process I did not realize that in the mean time several other processes their parameters got tweaked
Ethanol extract was a lot colder to keep fats waxes and chlorophyll out
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Also. Always use a cold trap lol. This was my vacuum pump oil only after 2 runs of Buchner filtering w/o having the cold trap in line 
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Or use a more appropriate vacuum pump…
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As @cyclopath said… You may want to look into a diaphragm style pump as opposed to the oil rotary vanes. They rotary vane pumps are definitely not intended to be used for jobs like a Buchner funnel.
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Should a cold trap still be used with a diaphragm pump?
Appreciate the advice 
getting a diaphragm pump as we speak 
Yes.
Although it also depends on where you’re sending the exhaust…
I’ve used one of these critters on a small Rotovap in the past…sans cold trap
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Exhaust will be sent out of a window.
You technically don’t have to have a trap running diaphragm pumps but I find Using a dry ice/iso cold trap with my welch 2052b i see between double and triple the pump life before a rebuild is necessary. Just food for thought.
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Max Vacuum @ -950mbar
These little rockers are built like tanks and super easy to get replacement parts for.
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Word. Appreciate you G 
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Totally off topic but our veg crew is funny af. I always find quotes written on out blocks or random shit like this 
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“Life’s a garden, dig it.” 
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Once again, I truly appreciate each and every one of you on this entire forum for your knowledge and willingness to share important information.
Have a wonderful day
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Any recommendations for a diaphragm vacuum pump to run with a 2L setup? Something less than 500bucks? Ran across some used Edward’s,Welch’s and Gasts online but not sure which would run a deep enough vacuum for optimal distillation. I’d only be using it a couple times a month so I don’t wanna go overboard with a super expensive pump. Any suggestions would be greatly appreciated