Kyle 

11/12/2013

Removed aux. pumps from annulus piping -> Isolated gate annulus from rest of annulus volume for ~30 minutes or so then recombined then isolated -> Observed expected changes in ion pump current (verifying gate annulus isolation valve working and that gate annulus volume is, in fact, evacuated) -> Applied 30 psi to underside of GV6's piston, increased to 40 psi a few hours later followed by 45 psi an hour or two later -> GV6 remained cammed closed -> Will abandon attempt for now -> recombined gate annulus volume (now having been un-pumped for ~6 hours) -> annulus ion pump current increased from (0) LEDs to (1) LED -> Gas load from annulus volume minimal -> Isolated gate annulus volume -> Leaving GV6 with 20 psi applied to top of piston for overnight -> Will repeat opening attempt tomorrow