I’m sorry to say that I just removed our instructions on how to do BHO extractions using an open tube, after us’n three SPR partners unanimously agreed that too many brothers and sisters are ignoring all warnings against indoor open blasting, and the havoc they are wreaking is causing us to all be painted with the same brush as sociopathic idiots.
I left the parts not relating to open blasting, including butane safety, which is applicable to both open and closed loop extraction.
There are ample sites demonstrating how to open blast, so ours is not needed.
Sorry it came to this! I note it is always the few that ruin things for us’n masses, but don’t know how to fix it.