Today's activities: - The purge air dew point was measured at the purge port: (9:15 am) -42.5 deg C - The relay tube was vented with Nitrogen, and was taken off: at the HAM5 side, the dog leg stayed, and at HAM7, one bellows was left there - The HAM5/HAM6 annulus system was vented with Nitrogen, the AIPs have been turned off - HAM5+X, HAM5-X, HAM6+X doors have been removed. Both HAM5 doors' inner O-ring are needed to be replaced, as they are damaged and worn out - IP19 was valved out at the top of HAM7 - HAM7 was vented, but all doors are staying in place for now - The pressures outside the corner have been stabilized now, and consistently dropping The pressures: - Corner, HAM7: atmosphere - Y-manifold: 3E-8 Torr - CP1: 3.9E-9 Torr - CP2: 5.3E-9 Torr