kyle.ryan@LIGO.ORG - posted 16:16, Thursday 17 April 2014 (11421)
Closed 10" gate valve at Y2-1 port on Y2 beam tube (ignore PT246A,B)
Valve will be left closed for a few weeks while the portable RGA is reconfigured and then baked -> PT246A,B gauges will be measuring the "unpumped" space between the closed 10" gate valve and a closed 1 1/2" angle valve-as such ignore them until further notice.