ok,iso must be 99% u.s.p., i think it's manufacturer's (mfr.'s) standard now. with isopropyl alcohol, you alwase want to be in a well ventilated area...no closets...to make hash/oil you need to evaporate the alcohol which has been used to clean w/e that has THC resin in it.
you're gonna need some kind of tool to get in the crevices of a long hose or something, a pipecleaner?...either way...soak it in alcohol, rinse and flush it out....rinse the vapo hose out with water and use a blowdryer on low fan, high heat...do not light a torch in the room ur doin it in unless it's a large room...make sure that the resin is at least more of an oil than a liquid before you smoke it and make sure it doesn't stink like alcohol or you might get a hot hoot. happy hootin' dude:rasta: