kyle.ryan@LIGO.ORG - posted 16:14, Wednesday 20 February 2019 (47037)
1400 hrs. local -> started Y-mid instrument air compressors
Leaving Y-mid instrument-air energized until further notice.
Also ,
1415 -1445 hrs. local -> Ran HEPTA pump (testing) at Y-mid. I expect to be running this pump intermittently over the next few days for various testing purposes and will record the Start/Stops in the aLOG at the end of the day(s).