Index: DGDefs.h
===================================================================
diff -u -re678e0ee6c231ae6db72c0e58a21d1f31cd5b66b -ra1a5a19a97fd1804ac0c03708fa07fdcc6a293f4
--- DGDefs.h	(.../DGDefs.h)	(revision e678e0ee6c231ae6db72c0e58a21d1f31cd5b66b)
+++ DGDefs.h	(.../DGDefs.h)	(revision a1a5a19a97fd1804ac0c03708fa07fdcc6a293f4)
@@ -266,6 +266,7 @@
     DG_CHEM_DISINFECT_STATE_FLUSH_DRAIN_R2,                     ///< Chemical disinfect, flush drain R2 state
     DG_CHEM_DISINFECT_STATE_FLUSH_DRAIN_R1,                     ///< Chemical disinfect, flush drain R1 state
     DG_CHEM_DISINFECT_STATE_FILL_WITH_WATER_AND_DISINFECTANT,   ///< Chemical disinfect, fill with water and disinfectant state
+    DG_CHEM_DISINFECT_STATE_REMOVE_ACID_BOTTLE_FROM_UI,         ///< Chemical disinfect, remove the acid bottle from UI state
     DG_CHEM_DISINFECT_STATE_DISINFECT_R1_TO_R2,                 ///< Chemical disinfect, disinfect R1 to R2 state
     DG_CHEM_DISINFECT_STATE_FILL_R2_WITH_DISINFECTANT,          ///< Chemical disinfect, fill R2 with disinfectant state
     DG_CHEM_DISINFECT_STATE_DISINFECT_R2_TO_R1,                 ///< Chemical disinfect, disinfect R2 to R1 state
@@ -281,8 +282,21 @@
     DG_CHEM_DISINFECT_STATE_COMPLETE,                           ///< Chemical disinfect, complete state
     NUM_OF_DG_CHEM_DISINFECT_STATES                             ///< Number of chemical disinfect mode states
 };
-typedef enum DG_Chem_States DG_CHEM_DISINFECT_STATE_T;          ///< Type for DG chemical disinfect states enumeration
+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_State
+{
+    CHEM_DISINFECT_UI_STATE_FLUSH_BEFORE_DISINFECT = 0,         ///< Chemical disinfect, flush before disinfect state
+    CHEM_DISINFECT_UI_STATE_REMOVE_ACID,                        ///< Chemical disinfect, remove acid state
+    CHEM_DISINFECT_UI_STATE_DISINFECT_DEVICE,                   ///< Chemical disinfect, disinfect device state
+    CHEM_DISINFECT_UI_STATE_FLUSH_AFTER_DISINFECT,              ///< Chemical disinfect, flush after disinfect state
+    CHEM_DISINFECT_UI_STATE_CANCEL_DISINFECT,                   ///< Chemical disinfect, cancel disinfect state
+    CHEM_DISINFECT_UI_STATE_COMPLETE,                           ///< Chemical disinfect, complete state
+    NUM_OF_CHEM_DISINFECT_UI_STATES                             ///< Number of chemical disinfect UI states
+};
+typedef enum DG_Chem_UI_State DG_CHEM_DISINFECT_UI_STATE_T;     ///< Type for DG chemical disinfect UI states enumeration
+
 /**@}*/
 
 /**