It was a bit explosive, heating solvents to their boiling point and condensing, then catching the THC. A number 2 wash tub (water is needed), electric hotplate, some 1" rope, A large SS pot with inverted lid, some rubber (inner tube) to make a seal, a smaller pot to catch the drippings, don't forget the ice! This ran 600 lbs a week intake to near 100% (they claimed 100%) pure THC. Unless you get it to hot, then BOOM!
There is better equipment today than these home brew things, dont try this at home boys and girls!