This morning added 100ml water to the PSL crystal chiller. As Patrick noted in aLOG #42772, the crystal chiller filter has picked up a bit of yellow. This could be due to the several changes made to the crystal chiller cooling circuit over the past month. There is one more large change (moving the FE cooling circuit to the end of the manifold) in the works. Will monitor filter condition as these changes are completed.   

   Added 100ml to the Diode chiller as well. The diode chiller filter looks clean and clear.