This morning, at around 08h55 UTC, we replaced the main laser chiller (see 1st plot).

The new chiller is from termotek, model P30210E-16750-2 (serial # 93612) and it has a higher flow speed. However, we checked the signals from the accelerometers and seismometers on the laser bench and we did't notice a worsening from the previous situation (see plot 2).