While snagging the measuring cup of the PSL to top of the TCS chillers, noticed that the PSL Crystal Chiller (one on top) was clearly in the middle of Max & Min.  Went ahead and topped this chiller off.  Added 200mL of water.

(The PSL Chiller FAMIS reminder will be on Thurs, so will probably not have to add too much.  Jeff B. mentioned this low level could probably be due to air bubbles bleeding out post-chiller-work last week.)