betsy.weaver@LIGO.ORG - posted 10:20, Friday 30 September 2016 - last comment - 12:00, Friday 30 September 2016(30092)
TCS chiller and lasers restarted
This morning around 8:30am, Nutsinee and I went out and restarted the TCS chillers and the TCS lasers. We also took the opportunity to swap the greenish filters. Recall, we had flushed both chillers last week, but when we installed a new set of filters we noticed that they were tinging green immediately even though we had just flushed the system. These filters sat for ~a week and we swapped them today in hopes that whatever immediately turned them green last week was just still pushing throgh the system. We also had to add another 750mL (to top off the half way full indicator to full) and again inspected for leaking water (none found).
We'll need to look up how to clean these recyclable filters.
Is this on top of the 500ml added yesterday? https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=30074
Added scales to the sides of the fill tubes. This will allow better monitoring of the chiller water levels. The TCS-X scale runs from 21 - 30, linearly, and the TCS-Y scale runs 0-10, linearly.
I have just opened and inspected the TCSY table - All water lines look good and no puddles found. The tubes also appear to be pretty solid with not many air bubbles.