Index: firmware/App/Controllers/BloodFlow.c
===================================================================
diff -u -r02fa169f02dd5a8caf27d1ea4441c74ba38317e8 -r46617afb446c35270b59e21085b270433d13d113
--- firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision 02fa169f02dd5a8caf27d1ea4441c74ba38317e8)
+++ firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision 46617afb446c35270b59e21085b270433d13d113)
@@ -401,7 +401,11 @@
 {
     F32 artPres = getLongFilteredArterialPressure();
     F32 rotSpd  = filteredBloodPumpSpeed / BP_GEAR_RATIO;
+#ifndef WORN_OUT_CARTRIDGE
     U32 rotCnt  = CAP( bloodPumpRotorCounter, BP_MAX_ROTOR_COUNT_FOR_WEAR );
+#else
+    U32 rotCnt = BP_MAX_ROTOR_COUNT_FOR_WEAR;
+#endif
     F32 wear    = BP_FLOW_WEAR_A_TERM * (F32)rotCnt + BP_FLOW_WEAR_B_TERM;
     F32 alpha   = wear * artPres + BP_FLOW_ALPHA_Y_INTERCEPT;
     F32 flow    = alpha * BP_ML_PER_ROTOR_REV * rotSpd;
Index: firmware/App/Controllers/PresOccl.c
===================================================================
diff -u -red89b19b0b1fbab494fee7a762efae059f32b274 -r46617afb446c35270b59e21085b270433d13d113
--- firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision ed89b19b0b1fbab494fee7a762efae059f32b274)
+++ firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision 46617afb446c35270b59e21085b270433d13d113)
@@ -166,10 +166,10 @@
 void initPresOccl( void )
 {
     // Initialize persistent pressure alarms
-    initPersistentAlarm( ALARM_ID_ARTERIAL_PRESSURE_LOW, PRES_ALARM_PERSISTENCE, PRES_ALARM_PERSISTENCE );
-    initPersistentAlarm( ALARM_ID_ARTERIAL_PRESSURE_HIGH, PRES_ALARM_PERSISTENCE, PRES_ALARM_PERSISTENCE );
-    initPersistentAlarm( ALARM_ID_VENOUS_PRESSURE_LOW, PRES_ALARM_PERSISTENCE, PRES_ALARM_PERSISTENCE );
-    initPersistentAlarm( ALARM_ID_VENOUS_PRESSURE_HIGH, PRES_ALARM_PERSISTENCE, PRES_ALARM_PERSISTENCE );
+    initPersistentAlarm( ALARM_ID_ARTERIAL_PRESSURE_LOW, 0, PRES_ALARM_PERSISTENCE );
+    initPersistentAlarm( ALARM_ID_ARTERIAL_PRESSURE_HIGH, 0, PRES_ALARM_PERSISTENCE );
+    initPersistentAlarm( ALARM_ID_VENOUS_PRESSURE_LOW, 0, PRES_ALARM_PERSISTENCE );
+    initPersistentAlarm( ALARM_ID_VENOUS_PRESSURE_HIGH, 0, PRES_ALARM_PERSISTENCE );
     initPersistentAlarm( ALARM_ID_HD_ARTERIAL_PRESSURE_READ_TIMEOUT_ERROR, 0, PRES_ALARM_PERSISTENCE );
     initPersistentAlarm( ALARM_ID_HD_VENOUS_PRESSURE_READ_TIMEOUT_ERROR, 0, PRES_ALARM_PERSISTENCE );
     initPersistentAlarm( ALARM_ID_HD_VENOUS_PRESSURE_SENSOR_TEMP_OUT_OF_RANGE, 0, PRES_ALARM_PERSISTENCE );
Index: firmware/App/HDCommon.h
===================================================================
diff -u -r02fa169f02dd5a8caf27d1ea4441c74ba38317e8 -r46617afb446c35270b59e21085b270433d13d113
--- firmware/App/HDCommon.h	(.../HDCommon.h)	(revision 02fa169f02dd5a8caf27d1ea4441c74ba38317e8)
+++ firmware/App/HDCommon.h	(.../HDCommon.h)	(revision 46617afb446c35270b59e21085b270433d13d113)
@@ -48,8 +48,9 @@
     #define DISABLE_ACK_ERRORS              1           // Do not error on failure of other node(s) to ACK a message
 //    #define USE_FMD_FLOW_SENSOR             1           // Use FMD flow sensor (on HD) instead of FMD on DG
 //    #define USE_FMB_FLOW_SENSOR             1           // Use FMB flow sensor instead of flow estimation from pump speed/pressure/wearing
-    #define RUN_BP_OPEN_LOOP                1           // Run blood pump in open loop mode
+//    #define RUN_BP_OPEN_LOOP                1           // Run blood pump in open loop mode
     #define RUN_DPI_OPEN_LOOP               1           // Run dialysate inlet pump in open loop mode
+    #define WORN_OUT_CARTRIDGE              1           // Running with an old worn out cartridge (max wear)
     #define DISABLE_MOTOR_CURRENT_CHECKS    1           // Do not error on HD pump current checks
     #define DISABLE_PUMP_FLOW_CHECKS        1           // Do not error on HD pump flow checks
     #define DISABLE_PUMP_SPEED_CHECKS       1           // Do not error on HD pump speed checks
Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -r5070f8552a200e15dcc2ca0532db10fba9dc8c6b -r46617afb446c35270b59e21085b270433d13d113
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 5070f8552a200e15dcc2ca0532db10fba9dc8c6b)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 46617afb446c35270b59e21085b270433d13d113)
@@ -55,9 +55,9 @@
 #define MAX_COMM_CRC_FAILURES           5       ///< Maximum number of CRC errors within window period before alarm
 #define MAX_COMM_CRC_FAILURE_WINDOW_MS  (10 * SEC_PER_MIN * MS_PER_SECOND)  ///< CRC error window
 
-#define MSG_NOT_ACKED_TIMEOUT_MS        150     ///< Maximum time for a Denali message that requires ACK to be ACK'd
+#define MSG_NOT_ACKED_TIMEOUT_MS        300     ///< Maximum time for a Denali message that requires ACK to be ACK'd
 #define MSG_NOT_ACKED_MAX_RETRIES       3       ///< Maximum number of times a message that requires ACK that was not ACK'd can be re-sent before alarm
-#define PENDING_ACK_LIST_SIZE           25      ///< Maximum number of Delanli messages that can be pending ACK at any given time
+#define PENDING_ACK_LIST_SIZE           25      ///< Maximum number of Denali messages that can be pending ACK at any given time
 
 #pragma pack(push, 1)