Problem raith SNF 2009-03-02 23:46:19: water flow down

[jwc at snf.stanford.edu]

added 1 liter of pure water to cooling loop.
Not sure where it leaked out of or evaporated.
unusual
raith has been called and requested to flush out all the cooling loop BEFORE replacing to our chiller.  Currently on a loaner chiller with no check valve to prevent reverse flow.