(Travis S., Gerardo M.)
Around 11:00 am today we opened GV8 from soft close to allow for commissioners to peek down x-arm.  The gate annulus for GV8 was burped into the annulus ion pump, almost no response.  The 4 turbo pumps were isolated from the main vacuum envelope, the 4 large ion pumps are valved in, along with HAM6 ion pump (500 l/s), and we still have a filter cavity section valved into the main corner volume, the section from FCV-3 to FCV-4, and includes ion pump B-1 (150 l/s).
GV8 remained open for about 5 1/2 hours.
We closed GV8 around 16:30 local time.
Attached is a pressure response from gauges along the X-arm at the corner station.