Mike:
The booster hooked to the Bane, or any other truckmount or portable, WILL boost the CFM of the entire system at the wand, and increase the airflow, thus decreasing the dry times. I have a fellow in the States who uses a slide-in petrol truckmount with a #4 blower, and has decreased his dry times significantly since using our vacuum boster inline with his existing truckmount.
When the booster is used inline, it is
ALWAYS PARALLEL to the existing vacuum system, thus increasing airflow, and decreasing dry times. Our inline vacuum booster uses all 2" vacuum hose, but easily adapts down to 1-1/2" hose on the outlet side if that's what your present HWE system uses, but the booster still uses 2" hose to the cleaning wand for maximum airflow.
If you re-read Mark's post, he actually capped of the outlet of the booster, and tested it as a suction and flow device, and compared that to his Bane, and to his portable. You would not use this model SAVAGE vacuum booster that Mark purchased as a stand alone device.
This vacuum booster is actually a mini recovery tank, that has a vacuum system on-board, so the dirty water passes through the vacuum booster to the main system recovery tank.
Again, this booster will perform quite well even being used parallel with a #4 blower spinning at 300 CFM, and not give it up, but will add airflow to the mix for better dry times.
Best regards,
Bob Savage
www.savage-1.com