The H1 input mode cleaner volume (HAM1, HAM2, and HAM3) is ready for pump-down and leak testing.  The blanked-off septum plate between HAM3 and the spool which connects HAM3 to BSC2 (which will experience the pressure difference) is fully restrained as the spool bellows and the HAM flange bellows are prevented from elongating or compressing via tie-rods.  If this detail were overlooked, the HAM flange bellows would become fully compressed and likely damaged with the HAM3 side under vacuum and the BSC2 side vented.  

The 8" gate valve+turbo combination that had been mounted on eLIGO HAM6 was moved to the west door of HAM2 as a temporary means to pump this volume and will be removed later.  The nominal turbo mounted atop HAM1 could not be used as its controller cable was too short (longer one to be ordered).  

Pumping was not begun as I am leaving soon and the roughing portion (pumping with only scroll pump) ought be monitored periodically so that adjustments can be made to the isolation valve set-point as the volume's pressure falls.  I will send Gerardo the details such that he can pump during the day while he is here next week.