Kyle
Purge air dewpoint measured <-35C now that doors and dome have been on for a few days and the flow demand is low enough for the drying towers to be effective (found pressure relief valve for scroll compressor #2 is stuck open and won't re-seat -> valved-out output of compressor #2 and de-energized it).  

Began pumping Y-end this morning.  

Kyle
~1600 hrs local 
Y-end pressure at 2.8 torr, going home now -> Closed O-ring valve at Turbo header, closed 10" gate valve at MTP inlet, switched safety valve switch to "Closed" position to close the safety valve, cracked open valve between Purge Air header and Turbo header to let the QDP80 pump a slight viscous load overnight. 

Will restore roughing configuration in the morning then switch over to MTP when pressure low enough.