Regeneration Flow Diagrams
61
Cat. No. 01024000
Fast Rinse Anion
The Fast Rinse Anion step allows the anion to rinse at full flow rate clearing out the last of the last of the caustic. Anion
Inlet valve (A3) remains open but Cation slow rinse valve (A4) closes and Anion fast rinse valve (A6) opens.
During system set-up and first regeneration runs, record the TDS level of the deionized water, exiting the system. After
the regeneration process is complete, this will establish the quality level considered poor.
C1
C4
A5
C2
A3
A1
A2
A4
C3
A6
C5
CP
AP
PR
2
TO
NEUTRALIZATION
TANK
Figure 25.
Fast rinse anion cycle.
The rinse is complete when the pH of the water exiting to drain is between 6.8 and 8.1 and the quality starts increasing.
Samples can be taken at the test cock just below the Rinse Outlet Valve. This test cock can also be used to tell when the
caustic breaks through the bottom of the resin bed. When Rinse is complete, the Anion Column returns to the Service
Cycle. Water flows through the TDS Sensor Cell to the Product Valve.