4-21 (Monday) activities:

- The aux carts from the annuli of GV5 and HAM4 were valved out; after a little hesitation, both IPs turned over, so now all AIPs are in good shape, without external support
- The pumpdown of the corner continues, with the corner being at 1.51E-6 Torr, and HAM6 is at 1.49E-6 Torr. There is a ~17% increase in pumping speed relatively to the last pumpdown in 2024 August. The details will be summarized soon.
- The pressure in the soft-closed GV7's actuator was increased from 10 to 15 psig, in preparation of opening GV2 tomorrow
- The flanges of the recently installed HAM6 turbo and HAM6 gauge was leak checked, no leaks were found, with the background of <1.0E-10 He
- All the welding seams on the X-manifold have been leak checked, no leaks were found, with the background changing between 2.6-3.0E-10 He. The welds have been individually bagged, see attached pic