We had a couple of HAM1 vacuum glitches yesterday evening (Thursday 13th November 2025) at 18:24 and 22:24 PST. The first glitch caused a VACSTAT alarm because its slope just exceeded the 1.0e-09 torr/min trip level, the second did not reach this level. 

These both look like sensor glitches (not gas releases), the pressure is a square wave with no pumpdown curve.

I restarted VACSTAT at 20:44, roughly at the mid point between the glitches, to clear the alarm.