Cryopump #4 reservoir is empty and the pressure at CP4 started to rise as a result - currently at 9.4e-8 Torr, and tapering off. Kyle closed the main LN2 draw valve outside to ensure no LN2 was seeping past the LLCV.
A second scroll pump is running and valved out at the bottom right angle valve on CP4, just in case the primary turbo scroll fails. Turbo has a fan for cooling.
GV 11 was completely stripped of all annulus piping today and more fiberglass insulation was removed from the GN2 lines (mid-y station needs a good cleaning).
CP4 Dewar will get filled next Tuesday.
Another change order to bake enclosure design is being worked out. Still plan to start installation Tuesday, the 20th.
Pressure is back on the decline! I'll be here for a bit yet and will go to mid-Y to physically check on things before I leave. No need for Kyle to sleep in his van next to pump tonight :)
