Been doing this for awhile now, I've always just used pvc but stainless steel or glass would be best. Copper is supposed to be worse than pvc, at least that what some people say, so who knows. My tube holds around 3 oz ground packed and i have a metal sceen in the bottom of the end cap then just 1 coffee filter.
As far as yeild I see about a gram to an ounce of GROUND trim leaves, some fan leaves (ones that have any noticipal crystals on the stems) and you need a large can of butane for each gram to. So for a 3 oz tube it takes at least 2 cans. A BIG THING FOR QUALITY! When you use leaf and popcorn buds and GRIND it you get more black oil, like in my pic. If you just CRUSH up the leaf and lightly herb grind the bud and do the extraction you will get see though beutifull amber honey oil even off shit, just not much of it. If you just use bud you will also get this beutifull amber oil. I usually run though once with just crushed leaves then take it out grind it and go again. stems seem to be fine to, good ones.
For butane Ive use cheap and expensive and can't really tell a quality difference but it seems the more expensive stuff gets a little more, probly just filled fuller than the cheap stuff. The mirror test is nice, spray some butane on a mittor and wait a few secs, their should be allmost no residue and NO smell. But as for health effects of cheap and expensive butane who knows. Also the hotter the water bath the better during extraction and I like to stick mine in the frezer for awhile afterwards.
Oh and here in the northwest usa its $25 a gram for the darker stuff and $35+ for the golden

sounds cheap compared to elsewhere.

yay for living in a smallish hippie town


I'm new to this community and hope I've shared somthing of somewhat use to people that don't know much about BHO and read this and don't first read though other excellent tutorials where I have learned
Oh and using a soda bottle is definitally creative and super cheap and I NEVER would of thought of that... but cmon 2 bucks for some pvc, its gotta be better.
watch out for my future posts in growing
