Index: firmware/App/Modes/ModeHeatDisinfectActiveCool.h
===================================================================
diff -u -r1475b55c0a91327f63a99ee5e40a7b55e0c43a06 -r2e56064726838bfb626ec3ea40132c4e3681639a
--- firmware/App/Modes/ModeHeatDisinfectActiveCool.h	(.../ModeHeatDisinfectActiveCool.h)	(revision 1475b55c0a91327f63a99ee5e40a7b55e0c43a06)
+++ firmware/App/Modes/ModeHeatDisinfectActiveCool.h	(.../ModeHeatDisinfectActiveCool.h)	(revision 2e56064726838bfb626ec3ea40132c4e3681639a)
@@ -32,29 +32,32 @@
 
 // ********** public definitions **********
 
-#define RSRVRS_FULL_STABLE_TIME_COUNT  ( ( 4 * MS_PER_SECOND ) / TASK_GENERAL_INTERVAL )           ///< Reservoirs 1 & 2 full stable time in counts.
+#define RSRVRS_FULL_STABLE_TIME_COUNT  ( ( 4 * MS_PER_SECOND ) / TASK_GENERAL_INTERVAL )       ///< Reservoirs 1 & 2 full stable time in counts.
 
 /// Heat disinfect active cool data publish struct
 typedef struct
 {
-    U32 heatDisinfectActivCoolState;                            ///< Heat disinfect active cool state.
-    U32 overallElapsedTime;                                     ///< Overall elapsed time in heat disinfect active cool mode.
-    U32 stateElapsedTime;                                       ///< Current heat disinfect active cool elapsed time.
-    U32 cancellationMode;                                       ///< Heat disinfect active cool cancellation mode.
+    U32 heatDisinfectActivCoolState;                                                           ///< Heat disinfect active cool state.
+    U32 overallElapsedTime;                                                                    ///< Overall elapsed time in heat disinfect active cool mode.
+    U32 stateElapsedTime;                                                                      ///< Current heat disinfect active cool elapsed time.
+    U32 cancellationMode;                                                                      ///< Heat disinfect active cool cancellation mode.
 } MODE_HEAT_DISINFECT_ACTIVE_COOL_DATA_T;
 
+/// Disinfect reservoir structure
 typedef struct
 {
-    LOAD_CELL_ID_T loadCell;
-    BOOL drainInit;
-    DG_RESERVOIR_STATUS_T rStatus;
+    LOAD_CELL_ID_T loadCell;                                                                   ///< Load cell ID.
+    BOOL drainInit;                                                                            ///< Boolean flag to indicate drain has been initialized.
+    DG_RESERVOIR_STATUS_T rStatus;                                                             ///< Disinfect reservoir status.
 } DIS_MODE_RSRVR_T;
 
+/// Disinfect reservoir status structure
 typedef struct
 {
-    DIS_MODE_RSRVR_T rsrvr[ NUM_OF_DG_RESERVOIRS ];
-    U32 rsrvrFillStableTime;
-    U32 rsrvrFillStableTimeoutMS;
+    DIS_MODE_RSRVR_T rsrvr[ NUM_OF_DG_RESERVOIRS ];                                            ///< Disinfect mode reservoir status array.
+    U32 rsrvrFillStableTime;                                                                   ///< Reservoir fill stable status time counter.
+    U32 rsrvrFillStableTimeoutMS;                                                              ///< Reservoir fill stable time out in milliseconds.
+    BOOL isThisInitialDrain;                                                                   ///< Boolean flag to indicate whether this is the initial drain or not.
 } DIS_RSRVR_STATUS_T;
 
 // ********** public function prototypes **********