I fell theres a huge lack of information out there on how to make proper BHO and that the peopel with the knowledge are keeping it a close secert. that being said this is not a how to bho thread but i do feel strongly that anyone making oil for personal use or to share should be vacuum purging period. the entire process can be done in around an hour or two and ensures you will be smoking a safe product. the start up cost will be around $200 and you should be abel to find everything at casa depot except the vac pump that will be at a harbor freight or auto parts store. and walmart for the ss food container ill try to list everything i used but hopefully you will get an idea of what will work. the first thing you will need is a vac pump. dont waste your time with a handeld mightyvac. harbor freight sells them for around $105 A vacuum chamber, i use a ss food container from walmart, it workes great for me but i only purge 5-6 grams of oil at a time. any more and you need a bigger container. all of the air lines and fittings are 1/4 inch and can be found at casa depot except for the line that screws into the vac pump for this i use an ac charging line sold at any auto parts store. now building the lid is were your design might vary. i used three 8x10 inch pieces of lexan and six bolts to hold it together. the lid has to be very stong so dont get cheap know, take your time and make it right. im sure im forgeting alot of stuff but hopefully this will get some people started. ask me any questions you can think of ide like to get a good thread going about everything BHO.