Well, it looks like he's got a pump valve that opens up from the BK to the fermenter so after he (theoretically) starts a cleaning run in the HLT he can flush it all the way through the system.
What I'm not seeing is how your HERM loop connects to your HLT. How are you maintaining temp in the HERM coil?
Muddy Creek Brewery - Opening Fall 2014
Come See Us At: The Original Festival, Butte Montana - September 12-13
Come See Us At: Butte-Toberfest, Butte Montana - September 20
Come See Us At: Montana Brewers Association Fall Festival, Missoula Montana - October 11