Index: firmware/App/Modes/ModeROPermeateSample.c
===================================================================
diff -u -rb644e09158661395c03a07f869eed78c77188e7a -r43f57e52a9a31e5154579178e847db3a6917b93c
--- firmware/App/Modes/ModeROPermeateSample.c	(.../ModeROPermeateSample.c)	(revision b644e09158661395c03a07f869eed78c77188e7a)
+++ firmware/App/Modes/ModeROPermeateSample.c	(.../ModeROPermeateSample.c)	(revision 43f57e52a9a31e5154579178e847db3a6917b93c)
@@ -274,6 +274,20 @@
      return status;
 }
 
+/*********************************************************************//**
+ * @brief
+ * The setROPermeateSampleDispenseRequest function sets the RO permeate
+ * sample dispense request.
+ * @details Inputs: none
+ * @details Outputs: dispenseMessageStatus
+ * @param request the status of the request (1: dispense, 0: stop)
+ * @return none
+ *************************************************************************/
+void setROPermeateSampleDispenseRequest( U32 request )
+{
+    dispenseMessageStatus = (DISPENSE_MSG_STATUS_T)request;
+}
+
 // ********** private functions **********
 
 /*********************************************************************//**
Index: firmware/App/Modes/ModeROPermeateSample.h
===================================================================
diff -u -ra12e1212c1cf49011ed8d65beaf9416ca18ffe98 -r43f57e52a9a31e5154579178e847db3a6917b93c
--- firmware/App/Modes/ModeROPermeateSample.h	(.../ModeROPermeateSample.h)	(revision a12e1212c1cf49011ed8d65beaf9416ca18ffe98)
+++ firmware/App/Modes/ModeROPermeateSample.h	(.../ModeROPermeateSample.h)	(revision 43f57e52a9a31e5154579178e847db3a6917b93c)
@@ -35,6 +35,8 @@
 
 BOOL stopDGROPermeateSample( void );
 
+void setROPermeateSampleDispenseRequest( U32 request );
+
 /**@}*/
 
 #endif
Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -r992975fb3cd56ddd7567b5e27f8bebd9b9948e9d -r43f57e52a9a31e5154579178e847db3a6917b93c
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 992975fb3cd56ddd7567b5e27f8bebd9b9948e9d)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 43f57e52a9a31e5154579178e847db3a6917b93c)
@@ -949,6 +949,10 @@
             handleStartStopDGROPermeateSample( message );
             break;
 
+        case MSG_ID_HD_SEND_RO_PERMEATE_SAMPLE_DISPENSE_REQUEST:
+            handleReceiveROPermeatSampleDispenseRequest( message );
+            break;
+
         // NOTE: This case must be last
         case MSG_ID_DG_TESTER_LOGIN_REQUEST:
             handleTesterLogInRequest( message );
Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r992975fb3cd56ddd7567b5e27f8bebd9b9948e9d -r43f57e52a9a31e5154579178e847db3a6917b93c
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 992975fb3cd56ddd7567b5e27f8bebd9b9948e9d)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 43f57e52a9a31e5154579178e847db3a6917b93c)
@@ -1822,7 +1822,34 @@
     sendAckResponseMsg( (MSG_ID_T)message->hdr.msgID, COMM_BUFFER_OUT_CAN_DG_2_HD, status );
 }
 
+/*********************************************************************//**
+ * @brief
+ * The handleReceiveROPermeatSampleDispenseRequest function handles receiving
+ * the RO permeate sample dispense request
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleReceiveROPermeatSampleDispenseRequest( MESSAGE_T* message )
+{
+    BOOL status = FALSE;
 
+    if ( message->hdr.payloadLen == sizeof(U32) )
+    {
+        U32 result;
+
+        memcpy( &result, message->payload, sizeof(U32) );
+
+        setChemicalDisinfectFlushSampleResult( result );
+
+        status = TRUE;
+    }
+
+    sendAckResponseMsg( (MSG_ID_T)message->hdr.msgID, COMM_BUFFER_OUT_CAN_DG_2_HD, status );
+}
+
+
 // ***********************************************************************
 // **************** Message Handling Helper Functions ********************
 // ***********************************************************************
Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -r992975fb3cd56ddd7567b5e27f8bebd9b9948e9d -r43f57e52a9a31e5154579178e847db3a6917b93c
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 992975fb3cd56ddd7567b5e27f8bebd9b9948e9d)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 43f57e52a9a31e5154579178e847db3a6917b93c)
@@ -185,6 +185,9 @@
 // MSG_ID_DG_START_STOP_RO_PERMEATE_SAMPLE_MODE_CMD_REQUEST
 void handleStartStopDGROPermeateSample( MESSAGE_T* message );
 
+// MSG_ID_HD_SEND_RO_PERMEATE_SAMPLE_DISPENSE_REQUEST
+void handleReceiveROPermeatSampleDispenseRequest( MESSAGE_T* message );
+
 // *********** public test support message functions **********
 
 // MSG_TESTER_LOG_IN