Yes, you need a vacuum pump to run any BHOgart extraction system. The vacuum pump is used to pull the initial vacuum on the BHOgart before each run. The pump is only needed for a short period of time, so only one pump is needed for multiple systems. The recovery pump cannot be used to pull the initial vacuum, as it is not designed to pull a full vacuum. It is vital that all of the oxygen in the system is completely vacuumed out to prevent fire.
Posted in: Extraction System Operation