Reports until 03:17, Saturday 27 April 2019
H1 PSL
jeffrey.bartlett@LIGO.ORG - posted 03:17, Saturday 27 April 2019 (48804)
Weekly PSL Chiller Top-Off (FAMIS #10506)
   Added 100ml water to Crystal Chiller. Filter is somewhat yellowed. I checked the filter inside the enclosure (last week when repairing water leak), and it is does not show the same yellowing. The Crystal Chiller filter in the Chiller room is a different brand from the other filters. This yellowing may be filter brand specific. No debris noted in the filter pleats or in bottom of the canister.  

   I did not add any water to the Diode Chiller. The Diode Chiller filter is clean and clear. 

   Closing FAMIS #10506