Clack Upflow Stage Programming

Here's how to program or check the stage programming on a Clack WS1 Upflow control valve. This is the control valve used for the Aquatell Citymaster, Citymaster PRO, and Citymaster PRO+ systems.


To access the stage programming menu press and hold the NEXT and DOWN buttons for 5 seconds, then release:

  • Use the arrow buttons to set softening then press NEXT
  • Use the arrow buttons to set UP then press NEXT
  • Use the arrow buttons to PosT then press NEXT
  • Use the arrow buttons to set the 2-brine to 60 then press NEXT
  • Use the arrow buttons to set the 3-backwash to 5 then press NEXT
  • Use the arrow buttons to set the 4- rinse to 8 then press NEXT
  • Use the arrow buttons to set the 5-fill to 9.5 lbs then press NEXT
  • Use the arrow buttons to set the capacity to 24.0 x 1000 then press NEXT:
  • Use the arrow buttons to set the REGEN to AUTo then press NEXT:
  • Use the arrow buttons to set Normal then press NEXT
  • Use the arrow buttons to set rELAY to oFF, then press NEXT
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