TheNewGuy2012
Member
Warning!!!
Never empty can's of butane gas indoors, even if you are in a window. Sparks from electronics & other indoor appliances(including fans) can cause the gas to ignite. Butane gas is heavier than air so just because u don't smell it, doesn't mean there isn't a can worth on the floor waiting to ignite. SIMPLY GO OUTDOORS WHERE IT CAN BLOW AWAY IN THE WIND.
[Video Overview]>>>> BHO - Vacuum Purge Method<<<<
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The Material
Sugar Leaf or Buds ONLY. Like any other Hash extraction... the better the material going in, the more yield and higher quality coming out. If you can, separate your material while trimming. The material used in this extraction method should be BONE DRY & coated in trichomes. A lot of people run strictly buds, so if you are running trim, the material has to be really high quality. Fan leaves just take up space in the tube and don't produce oil... so make sure it's COATED.
Equipment List
The Extraction Tube
I picked up my tubes from extraction experts they are pretty nice glass ones, nice & thick. For the 10Gram extraction tube a small ram rod like a pencil works well. For the 1 ounce tube i like a wooden spoon handle or a 1/2" - 3/4" wooden dowel.
The Gas
ONLY 5 TIMES REFINED!!! The only three gases I will even buy are Power, Vector, & FasFil {Thanks for the FasFil tip Slave}
A couple things about the gas to think about. Power is a 300ML can but lists 5.8 ounces. Vector is a 320ML can & doesn't list fluid ounces. FasFil is in a 300ML can & lists 10.15 ounces.
Heat Gun
The heat gun is essential IMO. It warms the oil without using flames, the heat is instant, and it's really easy to control. Warming the oil before it goes into the vacuum desiccator is highly important for removing residual butane. ALWAYS have a flame/heat resistant surface to set your heat gun after each use until it has cooled. Also ALWAYS operate the heat gun on LOW!!!.
Wagner HT1000 10 Amp Heat Gun (0503045) from The Home Depot
Reynolds Parchment Paper
This paper will line the collection plate & also store the oil when it's not in use.
2 - Pyrex Pans
A 7" x 11" glass pan is lined with parchment paper and placed inside a larger pan (9" x 13") that contains hot water. This will cause the butane gas to evaporate much quicker than at room temperature.
5+CFM Vacuum Pump
A vacuum pump does most of the work removing the residual butane. Usually it takes 5-10 quick vacuum cycles to remove the remaining butane and turn your oil to glass. Here I have listed 2 very heavy duty pumps that i know will last a long time if kept oiled & taken care of. The 5 CFM Robinair pulls a vacuum to 27Hg, I believe the 6 CFM Mastercool pulls to 29 or 32Hg. Either one of these will do the job very effectively & efficiently.
Amazon.com: Mastercool 90066-A Vacuum Pump: Automotive
Amazon.com: Robinair 15500 VacuMaster 5 CFM Vacuum Pump: Automotive
Vacuum and Fuel Pressure Gauge Kit
This isn't really required but it lets you know that the desiccator is at full vacuum & there are no leaks.
Amazon.com: Actron CP7802 Vacuum and Fuel Pressure Tester Kit: Automotive
Vacuum Chamber/Desiccator
I bought one of these desiccators because glass jars are not safe to put under this kind of pressure. Canning jars are built & rated for 15PSI & one of these pumps will pull a vacuum of 27 Hg in. This pressure can cause the chambers to crack or worse... implode throwing glass. I strongly recommend professional equipment & stay safe.
Amazon.com: Bel-Art 420220000 Scienceware Polycarbonate Bottom Space Saver Vacuum Desiccator, 19.7cm ID, 23cm Flange OD, 26cm H, 19cm Plate Size: Industrial & Scientific
The Procedure
Loading & Preparing The Extractor
As long as the butane can exit the canister & flow threw the tube... you are good to go. A quick way to test this is simply to blow threw the nozzle hole to test if it's plugged. You should pack the tube as much as possible (without causing blow back of course) for two reasons... The butane costs money & the yield is higher.
Start packing the tube. Use a ram rod to make sure it's packed good & tight. Add more, ram it down, & repeat until completely full.
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