Liquefier Cooling Water Filter Replacement  17-Aug-2022
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 - On 17-Aug-2022 I replaced both cooling water filters on
   the Main Compressor  and  the still single filter on the
   Purifier.

 - The previous Compressor filter replacement was on  29-June-2022.

 - The previous Purifier filter replacement was on  7-June-2022.

 - The Main Compressor was left running during the filter change.
   Valving Off the lower filter first dropped the flow rate from
   about 14 LPM to about 10 LPM.  With both filters replaced the
   flow rate is back up to about 17 LPM and we again have about
   30 psi across the Main Compressor.

 - The Purifier was in Mode 71 "Pump Trap" with its Compressor
   Package automatically shutoff  so there was no need to do
   anything to it while changing its filter,  i.e. nothing about
   the Purifier was manually turned Off while its filter was
   changed.  The pressure across the Purifier had gotten down to
   about 2 psi and is now back up to 4 or 5 psi.

 - The whole process, including two or three checks in the
   sub-basement took right about 1 hour.

 - Still need to install the dual filters on the Purifier.
   Everything is set ready to make the installation.

 - The vacuum jacket on the Purifier is getting worse and Reza
   may pump it next week.

 - I have 8 filters in stock.