{Bubba, Chris, Tyler, Chub, Jordan, Chandra}

Another good day of H2 decoupling work. We removed the expansion spool from BSC7 and installed the new door with no issues. Annulus pumped down quickly indicating no inner and outer o-ring leaks. We then blew down XBM volume (-37degC dew point) and proceeded to rough out volume. PT170 is currently reading 5 Torr. We will valve the QDP80 out for the night and resume pumping tomorrow morning.

Had time to vent YBM and remove expansion spool on BSC8. BSC8 flange is currently covered with C3 soft cover with a healthy purge air flow. The spool is connected to west crane and will be transferred to LVEA high bay area tomorrow morning when we're in full laser safe mode.

I moved the annulus pumping system from BSC7 to BSC8 in preparation for door installation tomorrow morning.