Peter, Jason, Jeff B.   

   Posted are the 7 day trends of the PSL chillers. The Diode chiller looks OK. The Crystal chiller circuit shows a steady rise in pressure and a decrease in flow. Temperatures in all four heads remain constant. There are some differences in the head flows, which are not yet understood. 

   These changes in flow and pressure start on 06/06/16 after (1) the inline filters were changed and (2) the site was recovering from a 3 day power outage.

   We are going into the PSL during the Tuesday maintenance window to check the plumbing system. I am monitoring the pressure, flow, and temperature on a daily basis.