Reports until 09:54, Monday 01 May 2023
H1 PSL
ryan.short@LIGO.ORG - posted 09:54, Monday 01 May 2023 (69209)
PSL Cooling Water pH Test

FAMIS 19961

pH of PSL chiller water was measured to be between 10.0 and 10.5 according to the color of the test strip.

I also checked the water lines in the chiller room; all full of water with no accumulated air or bubbles to be seen.