The annulus-type O-ring joints between GV11 and the removed/reinstalled iLIGO spool, this iLIGO spool and the new aLIGO GNB-sourced spool and this new aLIGO spool and the iLIGO beam manifold spool (3 joints total) were pumped down by hanging a small turbo at the closest annulus pump port and backing this turbo with an aux. turbo pump cart.  In all cases the indicated pressure at the CC of the aux. turbo inlet reached the mid 10-6 torr range after pumping for a few hours.  

The spools were vented at the time of the test.  These annulus joints are considered acceptable.