Index: dialin/common/alarm_defs.py
===================================================================
diff -u -rb3ca22a815632b0edbc2795a311c138bed626e57 -r9c3b1096271dc70ebe0aa92f2ff5c0c216430162
--- dialin/common/alarm_defs.py	(.../alarm_defs.py)	(revision b3ca22a815632b0edbc2795a311c138bed626e57)
+++ dialin/common/alarm_defs.py	(.../alarm_defs.py)	(revision 9c3b1096271dc70ebe0aa92f2ff5c0c216430162)
@@ -237,7 +237,7 @@
     ALARM_ID_DG_CONCENTRATE_PUMPS_INVALID_CAL_RECORD = 214
     ALARM_ID_HD_AIR_TRAP_UPPER_LEVEL_FLUID_TIME_OUT = 215
     ALARM_ID_HD_END_TREATMENT_TIMEOUT_ALARM = 216
-    ALARM_ID_AVAILABLE_32 = 217
+    ALARM_ID_HD_AIR_TRAP_ACTIVITY_TOO_FREQUENT = 217
     ALARM_ID_HD_SYRINGE_DETECTED = 218
     ALARM_ID_HD_SYRINGE_PUMP_SYRINGE_REMOVED = 219
     ALARM_ID_DG_THD_SENSORS_FPGA_FAULT = 220
Index: dialin/common/hd_defs.py
===================================================================
diff -u -r59162d9248ca9686b996b0efa5f9e95733611f1b -r9c3b1096271dc70ebe0aa92f2ff5c0c216430162
--- dialin/common/hd_defs.py	(.../hd_defs.py)	(revision 59162d9248ca9686b996b0efa5f9e95733611f1b)
+++ dialin/common/hd_defs.py	(.../hd_defs.py)	(revision 9c3b1096271dc70ebe0aa92f2ff5c0c216430162)
@@ -373,7 +373,9 @@
     HD_EVENT_BLOOD_LEAK_ZEROING_REQUIRED                    = 32    # HD event blood leak zeroing required
     HD_EVENT_UF_RATE_TX_DUR                                 = 33    # HD event UF rate changes in treatment duration.
     HD_EVENT_UF_RATE_TIME_TX_DUR                            = 34    # HD event UF rate time difference in treatment duration.
-    NUM_OF_EVENT_IDS                                        = 35    # Total number of HD events
+    HD_EVENT_AIR_TRAP_STATE_CHANGE                          = 35    # HD event air trap state change.
+    HD_EVENT_AIR_TRAP_VALVE_ON_OFF                          = 36    # HD event air trap valve on or off.
+    NUM_OF_EVENT_IDS                                        = 37    # Total number of HD events
 
 @unique
 class HDEventDataType(DialinEnum):
Index: dialin/hd/institutional_record.py
===================================================================
diff -u -rb3ca22a815632b0edbc2795a311c138bed626e57 -r9c3b1096271dc70ebe0aa92f2ff5c0c216430162
--- dialin/hd/institutional_record.py	(.../institutional_record.py)	(revision b3ca22a815632b0edbc2795a311c138bed626e57)
+++ dialin/hd/institutional_record.py	(.../institutional_record.py)	(revision 9c3b1096271dc70ebe0aa92f2ff5c0c216430162)
@@ -60,6 +60,7 @@
     _DEFAULT_MIN_RO_REJECTION_RATIO_PCT =              90
     _DEFAULT_MIN_INLET_WATER_COND_ALARM_LIMIT_USPCM =  200.0
     _DEFAULT_MIN_VEN_WIDE_WINDOW_LIMIT_MMHG =          0
+    _DEFAULT_END_TX_BLOOD_FLOW_MLPM =                  0
 
     _RECORD_SPECS_BYTES = 12
     _DEFAULT_TIME_VALUE = 0
@@ -335,6 +336,7 @@
                  'ro_rejection_ratio_pct': ['<i', self._DEFAULT_MIN_RO_REJECTION_RATIO_PCT],
                  'min_inlet_water_cond_alarm_limit_uspcm': ['<f', self._DEFAULT_MIN_INLET_WATER_COND_ALARM_LIMIT_USPCM],
                  'min_ven_press_wide_limit_window_mmhg': ['<i', self._DEFAULT_MIN_VEN_WIDE_WINDOW_LIMIT_MMHG],
+                 'end_tx_blood_flow_mlpm': ['<i', self._DEFAULT_END_TX_BLOOD_FLOW_MLPM],
                  'calibration_time': ['<i', self._DEFAULT_TIME_VALUE],
                  'crc': ['<H', self._DEFAULT_CRC_VALUE]}})