Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -r66e748932d4d47b275d7763cf828602bce492b1b -r2de8d8e0962237bc863ec0c8b69ac7e6ee50e9ff
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 66e748932d4d47b275d7763cf828602bce492b1b)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 2de8d8e0962237bc863ec0c8b69ac7e6ee50e9ff)
@@ -1055,17 +1055,17 @@
 
 /*********************************************************************//**
  * @brief
- * The cmdStartDGChememicalFlushDisinfect function sends a start chemical disinfect
+ * The cmdStartDGChemicalFlushDisinfect function sends a start chemical disinfect
  * flush command message to the DG.
  * @details Inputs: none
  * @details Outputs: start chemical disinfect flush mode command sent to DG.
  * @return none
  *************************************************************************/
-void cmdStartDGChememicalFlushDisinfect( void )
+void cmdStartDGChemicalFlushDisinfect( void )
 {
     BOOL start = TRUE;
     dgCmdResp[ DG_CMD_START_CHEM_DISINFECT_FLUSH ].commandID = DG_CMD_NONE;
-    sendDGStartChemicalDisinfectFlushModeCommand( start );
+    sendDGStartStopChemicalDisinfectFlushModeCommand( start );
 }
 
 /*********************************************************************//**
@@ -1080,11 +1080,55 @@
 {
     BOOL start = FALSE;
     dgCmdResp[ DG_CMD_STOP_CHEM_DISINFECT_FLUSH ].commandID = DG_CMD_NONE;
-    sendDGStartChemicalDisinfectFlushModeCommand( start );
+    sendDGStartStopChemicalDisinfectFlushModeCommand( start );
 }
 
 /*********************************************************************//**
  * @brief
+ * The cmdStopDGActiveCool function sends a stop active cool command
+ * message to the DG.
+ * @details Inputs: none
+ * @details Outputs: stop active cool mode command sent to DG.
+ * @return none
+ *************************************************************************/
+void cmdStopDGActiveCool( void )
+{
+    dgCmdResp[ DG_CMD_STOP_ACTIVE_COOL ].commandID = DG_CMD_NONE;
+    sendDGStopActiveCoolModeCommand();
+}
+
+/*********************************************************************//**
+ * @brief
+ * The cmdStartDGROPermeateSampleMode function sends an RO permeate sample
+ * start command message to the DG.
+ * @details Inputs: none
+ * @details Outputs: start RO permeate sample mode command sent to DG.
+ * @return none
+ *************************************************************************/
+void cmdStartDGROPermeateSampleMode( void )
+{
+    BOOL start = TRUE;
+    dgCmdResp[ DG_CMD_START_RO_PERMEATE_SAMPLE ].commandID = DG_CMD_NONE;
+    sendDGStartStopDGROPermeateSampleModeCommand( start );
+}
+
+/*********************************************************************//**
+ * @brief
+ * The cmdStopDGROPermeateSampleMode function sends an RO permeate sample
+ * stop command message to the DG.
+ * @details Inputs: none
+ * @details Outputs: stop RO permeate sample mode command sent to DG.
+ * @return none
+ *************************************************************************/
+void cmdStopDGROPermeateSampleMode( void )
+{
+    BOOL start = FALSE;
+    dgCmdResp[ DG_CMD_STOP_RO_PERMEATE_SAMPLE ].commandID = DG_CMD_NONE;
+    sendDGStartStopDGROPermeateSampleModeCommand( start );
+}
+
+/*********************************************************************//**
+ * @brief
  * The cmdRequestDGConcentrateRatios function sends a request to DG to receive
  * the concentrate ratios.
  * @details Inputs: none