Hello Community esp. Graywolf; I need your counsel & experience. This site comes highly recommended by some folks i trust. We excel in an environment where there is no such thing as a dumb question, except for the one not asked... With that said, i have started my build with a 110g 1.5" dewaxing column, the rig was purchased as part of an open blasting system. It was strongly suggested that i read up on "open blasting" which i did, including the horror stories of folks blowing themselves up. After two weeks of reading and study i made my first attempt. I had a few problems but was eventually successful in generating about 7g worth of extract. I purged in a 7gal BVV chamber at full vac for 24hr at 109 degrees. All was good in the bud world. However i will NOT be doing open blasting in the future. This was simply a baseline event. I am now moving towards CLP-Passive process. The first question i have is regarding the quality of BVV equipment. After several weeks of reading BVV seems to be the US based favorite for those of us that are not coming from the professional angle. I was told to stay away from HFS (China) or hobbyist grade; as a general rule. Emerald Gold and Glacier Tanks were also given as valued sources. The next question is should i buy a kit or piece part it? I am a Computer Engineer so a Frankenstein using the best of the best is not out of the question as long as i understand the reason for its' use. Thanks in advance for your time and advice.