Reports until 14:10, Thursday 31 August 2023
LHO General
tyler.guidry@LIGO.ORG - posted 14:10, Thursday 31 August 2023 (72601)
EY Chiled Water Gauges
4 pressure gauges were replaced today after the previous set was damaged during the runaway of EY Chiller 1. (2 per supply and return line)

There is some ambiguity between most of these gauges across all AHU's. Because the new gauges all read nearly exact pressures I will likely replace most/all others in the near future.

I also observed about 10psi of pressure loss since replenishing on friday. Glycol was added via the makeup tank to get back to a 30psi operating pressure. The EY makeup tank now has about 50% capacity.

T. Guidry