Index: AlarmDefs.h
===================================================================
diff -u -r782e566897e5fa32d671ee747853287aa804cd6b -r43bcdbff752f578fe33ff30ec5cf912454a1b685
--- AlarmDefs.h	(.../AlarmDefs.h)	(revision 782e566897e5fa32d671ee747853287aa804cd6b)
+++ AlarmDefs.h	(.../AlarmDefs.h)	(revision 43bcdbff752f578fe33ff30ec5cf912454a1b685)
@@ -323,7 +323,7 @@
     { ALARM_PRIORITY_HIGH,     3,   ALM_ESC_4_MIN,  ALARM_ID_BLOOD_SITTING_WARNING,               FALSE, TRUE , TRUE , FALSE, FALSE, FALSE, FALSE, FALSE, FALSE }, // ALARM_ID_BLOOD_FLOW_SIGNAL_STRENGTH_TOO_LOW
     { ALARM_PRIORITY_HIGH,     3,   ALM_ESC_4_MIN,  ALARM_ID_BLOOD_SITTING_WARNING,               FALSE, TRUE , TRUE , FALSE, FALSE, FALSE, FALSE, FALSE, FALSE }, // ALARM_ID_DIALYSATE_FLOW_SIGNAL_STRENGTH_TOO_LOW
     { ALARM_PRIORITY_HIGH,     3,   ALM_ESC_4_MIN,  ALARM_ID_BLOOD_SITTING_WARNING,               FALSE, TRUE , TRUE , FALSE, FALSE, FALSE, FALSE, FALSE, FALSE }, // ALARM_ID_EMPTY_SALINE_BAG
-    { ALARM_PRIORITY_HIGH,     3,   0,              ALARM_ID_NO_ALARM,                            TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , FALSE }, // ALARM_ID_SALINE_BOLUS_VOLUME_CHECK_FAILURE
+    { ALARM_PRIORITY_MEDIUM,   3,   0,              ALARM_ID_NO_ALARM,                            FALSE, FALSE, TRUE , FALSE, TRUE , TRUE , TRUE , FALSE, TRUE  }, // ALARM_ID_SALINE_BOLUS_VOLUME_CHECK_FAILURE
     { ALARM_PRIORITY_HIGH,     3,   0,              ALARM_ID_NO_ALARM,                            TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , FALSE }, // ALARM_ID_ARTERIAL_PRESSURE_SENSOR_FAULT
     { ALARM_PRIORITY_HIGH,     3,   0,              ALARM_ID_NO_ALARM,                            TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , FALSE }, // ALARM_ID_VENOUS_PRESSURE_SENSOR_FAULT
     { ALARM_PRIORITY_HIGH,     3,   0,              ALARM_ID_NO_ALARM,                            TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , TRUE , FALSE }, // ALARM_ID_UV_REACTOR_NOT_HEALTHY
Index: MsgDefs.h
===================================================================
diff -u -rc132ce35981454090cab63e3abb69a08eb3b02ea -r43bcdbff752f578fe33ff30ec5cf912454a1b685
--- MsgDefs.h	(.../MsgDefs.h)	(revision c132ce35981454090cab63e3abb69a08eb3b02ea)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision 43bcdbff752f578fe33ff30ec5cf912454a1b685)
@@ -229,6 +229,8 @@
 
     MSG_ID_HD_DEBUG_EVENT = 0xFFF1,                                     ///< HD debug event text to be logged in event log
     MSG_ID_DG_DEBUG_EVENT = 0xFFF2,                                     ///< DG debug event text to be logged in event log
+
+    MSG_ID_ACK_MESSAGE_THAT_REQUIRES_ACK = 0xFFFF,                      ///< Acknowledgment of message that requires acknowledgment
 
     END_OF_MSG_IDS                                                      ///< End of system message IDs
 };