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Sweetleaf systems use something similar to this extrusion for their racks... The T-nut allows the sliding action in the grooves of the extrusion. You can see it in action in some of Bret Mavericks youtube videos where he's running the v3 setup.

Guys are out there using 1 micron will no issues as far as i know, at least when it comes to removing important parts. Even as low as .2 to remove mold spores. Coffee filters are somewhere around 25 micron.

Basically, the absolute worst place for a sight glass like that would be somewhere between two valves while the sight glass has liquid solvent in it. The pressure & liquid start creating hydraulic forces and that's where the trouble starts; vapor pressure and hydraulic pressure are 2 different...

Here's the links to the videos with Bret Mav if you want to watch and see how he does it. Work Sesh 6 Work Sesh 7 Work Sesh 8 Word of warning, through most of the video, its not really That bad, but his intro of yyaaaa dog word up!!, is incredibly fucking annoying to me :-X lol so just try to...

I see now how you were trying to set it up, but the problem is that you need a ball valve underneath the hemi-reducer & in order to do that on the setup you're planning, you would need either a 4" valve, or go from 4" to 1.5" back to 4", which is alot of extra shit to deal with IMO...

The 6x6 is the "collection pot" where all of the oil you're extracting is going to end up with the butane that you run through the material in the material column(the 1.5x18 tube you listed). The 30lb tank is the "solvent storage tank" where the butane/propane is stored long term, until you're...

I'm not sure about a room temp tank, but I was watching a vid of BretMav using his sweetleaf setup and when he would shake up his tank that was on dry ice, agitating the tank would make the liquid solvent come into contact with the colder walls of the tank and chill the liquid down even more...

I don't know if this is what you're looking for, but these are the only charts I have regarding butane, temps, and pressure...

The problem with those coils is when you're done with the run, there will still be solvent left in the coil that will have to be boiled off to recover instead of gravity draining it into the rest of the system , adding time to your overall length of run.

Notice on these 2 examples that they both drain to the bottom, instead of looping back up, like some other companies offerings.... this is definitely the better design. I am in the process of having one made, using this coil. link

Graywolf's design... this one, I believe, is a triple core, 3 separate coils in one pot together, used for pre chilling solvent and cooling pump exhaust.

bhogart coils to pre chill your solvent... link

nice swiss cheese look, care to share the details on that slab? temp and vacuum and length of time in oven?

I just picked up 60lbs for $40, xtractor depot in so cal

I don't know about the experienced or scientific part, but a good place to start guessing with nug is 20-25% and that last pic looks pretty frosty, so definitely leaning towards 25%

really wish i could watch that without the russian translation lol

are they all in different locations? if not, consider a larger sized unit chilling a cooling reservoir with cooling coils on a manifold setup.

How'd this turn out for you?

To add to the 500-700 scale issue, its the meter you use that determines what scale to go by. And the same mfg (Hanna for instance) doesn't always use the same scale.

Happy 420 farm fam