kyle.ryan@LIGO.ORG - posted 17:04, Monday 05 December 2011 (1836)
Vented Vertex and YBM
GV1 made uncharacteristic "clunk" at cam-over Purge air left isolated from vented volumes overnight
GV1 made uncharacteristic "clunk" at cam-over Purge air left isolated from vented volumes overnight