kyle.ryan@LIGO.ORG - posted 17:32, Monday 05 February 2018 (40425)
Leak tested newly installed hardware at CP4's 10" gate valve
Initially found a high 10-9 torr*L/sec leak on the turbo pump side of the 2 1/2" RGA isolation valve -> vented, R&Rd this gasket -> follow up leak test done with an LD background of 4 x 10-9 torr*l/sec Leaving LD running overnight but with turbo spun down