Kyle, John 

Two additional discharge cycles, in addition to yesterday's single cycle, were completed by D. Sigg, J. Kissel and N. Mavalvala today.  Following the final gas admission, and with the X-end pressure at ~16 Torr or so and the TMDS port isolated, John and I decoupled the Surface Disharge Ionizer from BSC9 and installed a 2.75" blank in its place.  I then opened the 1.5" TMDS port gate valve and "burped" these few ccs of room air into the X-end vacuum volume.  This valve was then left open.  

I roughed down using the QDP80 to 0.5 Torr < pressure < 1.0 Torr before spinning up the Turbo.  This is the same approach as was used for the previous two pump downs.  

I am leaving the X-end on the Turbo overnight and plan to execute WP #7134 in the morning.