Index: DGDefs.h
===================================================================
diff -u -re9beb6b7cbe88dfd9c38ef0ca9f4724ca28916a3 -r656fa9161aa0912c10dd59700f7d1c25b984e16f
--- DGDefs.h	(.../DGDefs.h)	(revision e9beb6b7cbe88dfd9c38ef0ca9f4724ca28916a3)
+++ DGDefs.h	(.../DGDefs.h)	(revision 656fa9161aa0912c10dd59700f7d1c25b984e16f)
@@ -398,6 +398,7 @@
     DG_CHEM_DISINFECT_STATE_DRAIN_R1,                           ///< Chemical disinfect, drain R1 state
     DG_CHEM_DISINFECT_STATE_DRAIN_R2,                           ///< Chemical disinfect, drain R2 state
     DG_CHEM_DISINFECT_STATE_FLUSH_DRAIN,                        ///< Chemical disinfect, flush drain state
+    DG_CHEM_DISINFECT_STATE_DEPRIME_ACID_LINE,                  ///< Chemical disinfect, de-prime acid line state
     DG_CHEM_DISINFECT_STATE_FLUSH_CIRCULATION,                  ///< Chemical disinfect, flush circulation state
     DG_CHEM_DISINFECT_STATE_PRIME_DISINFECTANT,                 ///< Chemical disinfect, prime disinfectant state
     DG_CHEM_DISINFECT_STATE_DISINFECTANT_FLUSH,                 ///< Chemical disinfect, disinfectant flush state
@@ -413,21 +414,6 @@
 };
 typedef enum DG_Chem_States DG_CHEM_DISINFECT_STATE_T;          ///< Type for DG chemical disinfect states enumeration
 
-/// Enumeration of chemical disinfect mode UI states
-enum DG_Chem_UI_States
-{
-    CHEM_DISINFECT_UI_STATE_NOT_RUNNING = 0,                    ///< Chemical disinfect UI, not running state
-    CHEM_DISINFECT_UI_STATE_FLUSH_BEFORE_DISINFECT,             ///< Chemical disinfect UI, flush before disinfect state
-    CHEM_DISINFECT_UI_STATE_MIX_WATER_AND_ACID,                 ///< Chemical disinfect UI, mix water and acid state
-    CHEM_DISINFECT_UI_STATE_REMOVE_ACID,                        ///< Chemical disinfect UI, remove acid state
-    CHEM_DISINFECT_UI_STATE_DISINFECT_DEVICE,                   ///< Chemical disinfect UI, disinfect device state
-    CHEM_DISINFECT_UI_STATE_FLUSH_AFTER_DISINFECT,              ///< Chemical disinfect UI, flush after disinfect state
-    CHEM_DISINFECT_UI_STATE_CANCEL_DISINFECT,                   ///< Chemical disinfect UI, cancel disinfect state
-    CHEM_DISINFECT_UI_STATE_COMPLETE,                           ///< Chemical disinfect UI, complete state
-    NUM_OF_CHEM_DISINFECT_UI_STATES                             ///< Number of chemical disinfect UI states
-};
-typedef enum DG_Chem_UI_States DG_CHEM_DISINFECT_UI_STATE_T;    ///< Type for DG chemical disinfect UI states enumeration
-
 #if defined(_HD_) || defined(_DG_)
 /// Chemical disinfect data
 typedef struct
@@ -438,7 +424,7 @@
     U32 cancellationMode;                                       ///< Chemical disinfect cancellation mode.
     F32 R1FillLevel;                                            ///< Reservoir 1 level upon starting the chemical disinfect.
     F32 R2FillLevel;                                            ///< Reservoir 2 level upon starting the chemical disinfect.
-    U32 chemDisinfectUIState;                                   ///< Chemical disinfect UI state.
+    F32 acidAvgCondUSPCM;                                       ///< Acid average conductivity in uS/cm.
 } MODE_CHEMICAL_DISINFECT_DATA_T;
 #endif