You need some class so here you go:
http://www.ext.colostate.edu/mg/gardennotes/141.html
Note the bit about respiration. I shall await your humble apology you arrogant twat. ;)
To be honest, I never fully scrape my thin film pan, 9x13 baking dish, i get the 14 - 15 grams that is easy. I just wash the remainder with 190 and save in my winterization jar for next run.
My pan pools in the middle thus I get a puddle in the center. It doesn't get fully purged due to...
The normal fresh air exchange of your building is likely adequate for your small grow.
No building is completely sealed.
Control odor, eventually the stinky building is detectable from outside.
My plants bump my sealed room from 1500 up to 2600+ ppm CO2, as plants use Oxygen and put out CO2 in the dark. That said, my CO2 generator does not have to run at all for the first several hours of the light cycle.
Somewhere around 10k ppm it becomes toxic to mammals. So yes it can get too high.
If the wiring Is exposed and not inside wall cavities, I would probably toss in some metal clad (MC). 6-2 is what I would use to feed a 3-prong 50amp receptacle, can't use smaller wire as the wire and terminals are not rated for the 75 degree column.
http://ecogreenindustries.net/?product=filling-adapter-kit
Understanding that not everyone affords a closed loop rig...
This sweet little adapter, lets you get your clean r-600 butane in bulk for use with your open ended extraction columns.
About the only place in Pueblo currently worth a visit IMO is the Hashish House.
Maggie's is hit n miss as is Greener Side West / Stem Beach. Marisol, Pueblo West Organics and Steel City all sucking hind tit for quality. Stuff looks like cartel weed from mexico.
http://www.medicalalternativesclinic.com/About_our_Staff.html
Take extra $ in the event you are eligible for his "enhanced" plant count options.
As I remember, his Pueblo office charges a little more for the visit.
SE cable is not proper, only for service entrances. NM cable or THWN in conduit raceway. Aluminum can ONLY be used if all terminations are rated AL or CU/AL.
http://skunkpharmresearch.com/salvaging-moldy-material-2/
Ran across that read. I suppose the lack of alphatoxins in botrytis may leave a small window if they have the required equipment.
Never done this myself.