Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -r6419179374edcd65da462de84e8aeaefb7e20320 -r049175cd6c514657ede645412cab05ce707d002f
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 6419179374edcd65da462de84e8aeaefb7e20320)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 049175cd6c514657ede645412cab05ce707d002f)
@@ -100,6 +100,7 @@
 static U32 dgReservoirDrainVolumeTargetSet = 0;                 ///< Drain-to volume commanded.
 static U32 resUseTimer = 0;                                     ///< Used to track time pumping from active reservoir (for volume used calculation).
 static F32 resUseVolumeMl = 0.0;                                ///< Accumulated volume used from active reservoir.
+static DG_DISINFECT_UI_STATES_T disinfectsStatus;               ///< DG disinfects status.
 
 // DG command response
 static DG_CMD_RESPONSE_T dgCmdResp[ NUM_OF_DG_COMMANDS ];       ///< Keep the latest DG command response for each command.
@@ -518,6 +519,18 @@
     return result;
 }
 
+/*********************************************************************//**
+ * @brief
+ * The getDGDisinfectsStates function returns the DG disinfects readings.
+ * @details Inputs: none
+ * @details Outputs: disinfectsStatus
+ * @return the current DG disinfects readings
+ *************************************************************************/
+DG_DISINFECT_UI_STATES_T getDGDisinfectsStates( void )
+{
+    return disinfectsStatus;
+}
+
 /*********************************************************************//**
  * @brief
  * The setDGOpMode function sets the latest DG operating mode reported by
@@ -682,6 +695,20 @@
     lgLoadCellReadingsIdx = INC_WRAP( lgLoadCellReadingsIdx, 0, SIZE_OF_LARGE_LOAD_CELL_AVG - 1 );
 }
 
+/*********************************************************************//**
+ * @brief
+ * The setDGDisinfectsStates function sets the latest disinfects states
+ * from DG.
+ * @details Inputs: none
+ * @details Outputs: disinfectsStatus
+ * @param states latest DG disinfects state readings
+ * @return none
+ *************************************************************************/
+void setDGDisinfectsStates( DG_DISINFECT_UI_STATES_T states )
+{
+    memcpy( &disinfectsStatus, &states, sizeof(DG_DISINFECT_UI_STATES_T) );
+}
+
 /*********************************************************************//**
  * @brief
  * The cmdSetDGDialysateTargetTemps function sends a target dialysate
@@ -861,10 +888,100 @@
 void cmdDGSampleWater( SAMPLE_WATER_CMD_T cmd )
 {
     sendDGSampleWaterCommand( cmd );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The cmdStartDGFlush function sends a start flush command message to
+ * the DG.
+ * @details Inputs: none
+ * @details Outputs: start flush mode command sent to DG.
+ * @return none
+ *************************************************************************/
+void cmdStartDGFlush( void )
+{
+    BOOL start = TRUE;
+    dgCmdResp[ DG_CMD_START_FLUSH ].commandID = DG_CMD_NONE;
+    sendDGStartFlushModeCommand( start );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The cmdStopDGFlush function sends a stop flush command message to
+ * the DG.
+ * @details Inputs: none
+ * @details Outputs: stop flush mode command sent to DG.
+ * @return none
+ *************************************************************************/
+void cmdStopDGFlush( void )
+{
+    BOOL start = FALSE;
+    dgCmdResp[ DG_CMD_STOP_FLUSH ].commandID = DG_CMD_NONE;
+    sendDGStartFlushModeCommand( start );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The cmdStartDGHeatDisinfect function sends a start heat disinfect
+ * command message to the DG.
+ * @details Inputs: none
+ * @details Outputs: start heat disinfect mode command sent to DG.
+ * @return none
+ *************************************************************************/
+void cmdStartDGHeatDisinfect( void )
+{
+    BOOL start = TRUE;
+    dgCmdResp[ DG_CMD_START_HEAT_DISINFECT ].commandID = DG_CMD_NONE;
+    sendDGStartHeatDisinfectModeCommand( start );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The cmdStopDGHeatDisinfect function sends a stop heat disinfect
+ * command message to the DG.
+ * @details Inputs: none
+ * @details Outputs: stop heat disinfect mode command sent to DG.
+ * @return none
+ *************************************************************************/
+void cmdStopDGHeatDisinfect( void )
+{
+    BOOL start = FALSE;
+    dgCmdResp[ DG_CMD_STOP_HEAT_DISINFECT ].commandID = DG_CMD_NONE;
+    sendDGStartHeatDisinfectModeCommand( start );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The cmdStartDGChemicalDisinfect function sends a start chemical disinfect
+ * command message to the DG.
+ * @details Inputs: none
+ * @details Outputs: start chemical disinfect mode command sent to DG.
+ * @return none
+ *************************************************************************/
+void cmdStartDGChemicalDisinfect( void )
+{
+    BOOL start = TRUE;
+    dgCmdResp[ DG_CMD_START_CHEM_DISINFECT ].commandID = DG_CMD_NONE;
+    sendDGStartChemicalDisinfectModeCommand( start );
 }
 
 /*********************************************************************//**
  * @brief
+ * The cmdStopDGChemicalDisinfect function sends a stop chemical disinfect
+ * command message to the DG.
+ * @details Inputs: none
+ * @details Outputs: stop chemical disinfect mode command sent to DG.
+ * @return none
+ *************************************************************************/
+void cmdStopDGChemicalDisinfect( void )
+{
+    BOOL start = FALSE;
+    dgCmdResp[ DG_CMD_STOP_CHEM_DISINFECT ].commandID = DG_CMD_NONE;
+    sendDGStartChemicalDisinfectModeCommand( start );
+}
+
+/*********************************************************************//**
+ * @brief
  * The handleDGCommandResponse function processes the latest DG command response.
  * @details Inputs: none
  * @details Outputs: process command response from DG