Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -ra37189e75de205982befcc91176f33c0523b03a8 -r41a41275952290677df1fb0d27db3f354be26dd8
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision a37189e75de205982befcc91176f33c0523b03a8)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 41a41275952290677df1fb0d27db3f354be26dd8)
@@ -1811,7 +1811,7 @@
 
 /*********************************************************************//**
  * @brief
- * The sendDGStartChemicalDisinfectFlushModeCommand function constructs a DG
+ * The sendDGStartStopChemicalDisinfectFlushModeCommand 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
@@ -1820,7 +1820,7 @@
  * @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 sendDGStartStopChemicalDisinfectFlushModeCommand( BOOL start )
 {
     BOOL result;
     MESSAGE_T msg;
@@ -3421,7 +3421,46 @@
     serializeMessage( msg, COMM_BUFFER_OUT_CAN_HD_2_DG, ACK_NOT_REQUIRED );
 }
 
+// MSG_ID_DG_START_STOP_HEAT_DISINFECT_ACTIVE_COOL
+BOOL sendDGStopActiveCoolModeCommand( void )
+{
+    BOOL result;
+    MESSAGE_T msg;
+    BOOL start = FALSE;
 
+    // Create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_DG_START_STOP_HEAT_DISINFECT_ACTIVE_COOL;
+    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;
+}
+
+// MSG_ID_DG_START_STOP_RO_PERMEATE_SAMPLE_MODE_CMD_REQUEST
+BOOL sendDGStartStopDGROPermeateSampleModeCommand( BOOL start )
+{
+    BOOL result;
+    MESSAGE_T msg;
+
+    // Create a message record
+    blankMessage( &msg );
+    msg.hdr.msgID = MSG_ID_DG_START_STOP_RO_PERMEATE_SAMPLE_MODE_CMD_REQUEST;
+    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;
+}
+
+
 /*************************************************************************
  *                       TEST SUPPORT FUNCTIONS
  *************************************************************************/