Index: firmware/App/Controllers/AirTrap.c
===================================================================
diff -u -r7398059c2c05ac5098fc5325cff938d20645a69d -rff9c1ff6639463857772152b9339a237e6722184
--- firmware/App/Controllers/AirTrap.c	(.../AirTrap.c)	(revision 7398059c2c05ac5098fc5325cff938d20645a69d)
+++ firmware/App/Controllers/AirTrap.c	(.../AirTrap.c)	(revision ff9c1ff6639463857772152b9339a237e6722184)
@@ -404,7 +404,7 @@
              ( TRUE == didTimeout( airTrapLowerDelayStartTime, AIR_PUMP_ON_DELAY_TIME_MS ) ) )
         {
             set3WayValveState( H13_VALV, VALVE_3WAY_COMMON_TO_OPEN_STATE );   // open valve H13 to allow air to be pumped into air trap from atmosphere
-            airTrapAirPumpLowerPowerLevel.data = getCalculatedAirPumpDutyCycle();
+            //airTrapAirPumpLowerPowerLevel.data = getCalculatedAirPumpDutyCycle();
             setAirPumpState( AIR_PUMP_STATE_ON, getAirPumpLowerPowerLevel() );
             airTrapLowerStartTime = getMSTimerCount();
             signalInitiatePressureStabilization( USE_SHORT_STABILIZATION_PERIOD );
@@ -421,6 +421,8 @@
         set3WayValveState( H20_VALV, VALVE_3WAY_COMMON_TO_OPEN_STATE );  // open valve H20 to allow air to be pumped out of air trap to atmosphere
         airTrapFillStartTime = getMSTimerCount();
         SEND_EVENT_WITH_2_U32_DATA( TD_EVENT_AIR_TRAP_FILL, ON, 0 );
+        // get long filtered H14 venous pressure before AP fill event
+        airTrapAirPumpLowerPowerLevel.data = getCalculatedAirPumpDutyCycle();
         result = AIR_TRAP_RAISE_LEVEL_STATE;
     }