I havent looked into ISo much but in my search for ethyl for winterizing i just found a source so yay for that I dont know much about the purging process for iso but am straying away from the whole BHO idea after having this pump problem. Was gonna ask a question but answered it myself while...
yo man I have been having the same problem i used to get good tasting stuff with heat purge. Then got a vac system and it tastes like shit/ harsh on throat on the aftertaste. Sometimes i see smoke coming from the pump, and if I close the ball valve quickly sometimes i see a faint fog or mist...
idk one guy asked me if it was sativa so i was thinkin it might be an obvious one to guess this is my first grow btw still learning if u could give me any tips