I actually topped off the chiller with water tonight as I am returning to Scotland (and then off to CERN) within hours.

I added 4 liters on around July 5th, to move the marker from a little under the halfway mark to over the halfway mark.  After 2.x weeks, it was still sitting a bit shy of under the halfway mark.  This means that in a humid and hot Japanese month like July, AIDA doesn't evaporate more than something like 2 liters in one week. 

As it's now topped off, I think it's good to go for something like several months.

I also note that I use a faucet in the old Nishina Center, rather than passing radiation control, to find a water tap.  It's maybe more of a hike but it avoids going through radiation control.

Anyway, the point of my elog post is that the AIDA chiller will not be running out of water any time soon, probably not before October, though local members at RIKEN might check it each month etc, or on request.  I left the bucket and the large-volume container right sitting by it.  I still don't know where the funnel is, so I robbed (borrowed) a kind of 1 liter handled jug with a beaker from a place, and returned it.