Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -raa8b9687b9396b4878cf0d5327d72a5d67477761 -ra6587c2ba0a40bdf12b5fdcf2ba8dec0cd958cfa
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision aa8b9687b9396b4878cf0d5327d72a5d67477761)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision a6587c2ba0a40bdf12b5fdcf2ba8dec0cd958cfa)
@@ -851,18 +851,22 @@
 
         memcpy( &cmd, message->payload, sizeof(U32) );
 
-        if ( 0 == cmd )         // Command 0 = Flush
+        if ( DG_DISINFECT_FLUSH_STATE == cmd )         // Command 0 = Flush
         {
             result = signalUserInitiateFlushMode();
         }
-        else if ( 1 == cmd )    // Command 1 = Heat disinfect
+        else if ( DG_DISINFECT_HEAT_STATE == cmd )    // Command 1 = Heat disinfect
         {
             result = signalUserInitiateHeatDisinfectMode();
         }
-        else if ( 2 == cmd )   // Command 2 = chemical disinfect
+        else if ( DG_DISINFECT_CHEM_STATE == cmd )   // Command 2 = chemical disinfect
         {
             result = signalUserInitiateChemicalDisinfectMode();
         }
+        else if ( DG_DISINFECT_CHEM_FLUSH_STATE == cmd )  // Command 3 = chemical disinfect flush
+        {
+            result = signalUserInitiateChemcialDisinfectFlushMode();
+        }
     }
 
     sendAckResponseMsg( (MSG_ID_T)message->hdr.msgID, COMM_BUFFER_OUT_CAN_HD_2_UI, result );
@@ -1798,6 +1802,35 @@
 
 /*********************************************************************//**
  * @brief
+ * The sendDGStartChemicalDisinfectFlushModeCommand function constructs a DG
+ * start/stop chemical disinfect flush mode command message and queues the msg
+ * for transmit on the appropriate CAN channel.
+ * @details Inputs: none
+ * @details Outputs: DG start chemical disinfect flush mode command msg
+ * constructed and queued.
+ * @param start TRUE indicates start chemical disinfect flush mode
+ * @return TRUE if msg successfully queued for transmit, FALSE if not
+ *************************************************************************/
+BOOL sendDGStartChemicalDisinfectFlushModeCommand( BOOL start )
+{
+    BOOL result;
+    MESSAGE_T msg;
+
+    // Create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_DG_START_STOP_CHEM_DISINFECT_FLUSH;
+    msg.hdr.payloadLen = sizeof( BOOL );
+
+    memcpy( msg.payload, &start, sizeof( BOOL ) );
+
+    // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_2_DG, ACK_REQUIRED );
+
+    return result;
+}
+
+/*********************************************************************//**
+ * @brief
  * The broadcastAlarmStatus function constructs an alarm status msg to
  * be broadcast and queues the msg for transmit on the appropriate CAN channel.
  * @details Inputs: none
@@ -3305,7 +3338,7 @@
         if ( ( CONFIRMATION_REQUEST_STATUS_REJECTED == status ) ||
              ( CONFIRMATION_REQUEST_STATUS_ACCEPTED == status ) )
         {
-            setConfirmationRequestStatus( (GENERIC_CONFIRM_ID_T) request_id, (CONFIRMATION_REQUEST_STATUS_T) status );
+            setConfirmationRequestStatus( (GENERIC_CONFIRM_ID_T)request_id, (CONFIRMATION_REQUEST_STATUS_T)status );
         }
     }
 
@@ -3345,7 +3378,33 @@
     serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_2_UI, ACK_NOT_REQUIRED );
 }
 
+/*********************************************************************//**
+ * @brief
+ * The handleSendChemFlushPassFailToDG function sends the result of the
+ * chemical disinfect flush sample pass/fail to DG
+ * @details Inputs: none
+ * @details Outputs: none
+ * @param status which is the status of the result
+ * @return none
+ *************************************************************************/
+void handleSendChemFlushPassFailToDG( U32 status )
+{
+    MESSAGE_T msg;
+    U08 *payloadPtr = msg.payload;
 
+    // Create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_HD_SEND_CHEM_FLUSH_SAMPLE_PASS_FAIL_TO_DG;
+    // The payload length is U32 Request ID, U32 Type
+    msg.hdr.payloadLen = sizeof( U32 );
+
+    memcpy( payloadPtr, &status, sizeof( U32 ) );
+
+    // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_2_DG, ACK_NOT_REQUIRED );
+}
+
+
 /*************************************************************************
  *                       TEST SUPPORT FUNCTIONS
  *************************************************************************/