Index: firmware/App/Controllers/DryBiCart.c
===================================================================
diff -u -rfd897db8177752330ad08d877e0a13620513dbdc -rde7ed4edf09692eb9b461b5fb9f73eb5f0a47bb6
--- firmware/App/Controllers/DryBiCart.c	(.../DryBiCart.c)	(revision fd897db8177752330ad08d877e0a13620513dbdc)
+++ firmware/App/Controllers/DryBiCart.c	(.../DryBiCart.c)	(revision de7ed4edf09692eb9b461b5fb9f73eb5f0a47bb6)
@@ -45,14 +45,18 @@
 #define DRY_BICART_DATA_PUBLISH_INTERVAL            ( 250 / TASK_GENERAL_INTERVAL )             ///< Interval (ms/task time) at which the balancing chamber data published.
 
 // Dry Bicart Fill
-#define DRY_BICART_FILL_DURATION_MIN_MS             ( 2 * MS_PER_SECOND )                       ///< Minimum fill duration to be met to end the fill cycle.
+#define DRY_BICART_FILL_PERSISTANCE_DURATION_MS     200                                         ///< Fill persistence duration to overcome the pressure over shoot for beta 1.9 and beta 2.0.
+#define DRY_BICART_FILL_DURATION_MIN_MS             ( 2 * MS_PER_SECOND + \
+                                                      DRY_BICART_FILL_PERSISTANCE_DURATION_MS ) ///< Minimum fill duration to be met to end the fill cycle.
 #define DRY_BICART_FILL_COMPLETE_TIME_MS            ( 1 * MS_PER_SECOND )                       ///< Wait time to reset the request flag after fill complete
 #define DRY_BICART_FILL_DURATION_DIFF_MS            750                                         ///< Fill duration difference between last and current fill cycle.
-#define PRESSURE_OFFSET                             2                                           ///< Dry bicart pressure offset
+
+#define PRESSURE_OFFSET                             2                                           ///< Dry bicart pressure offset.
 #define DRY_BICART_FILL_COMPLETE_PRESSURE           ( 10.0F + PRESSURE_OFFSET )                 ///< Maximum pressure reached to indicate the dry bicart fill being completed.
-#define DRY_BICART_FILL_INITIATE_PRESSURE           3.0F                                        ///< Minimum pressure required to initiate the dry bicart fill process.
+#define DRY_BICART_FILL_INITIATE_PRESSURE           1.5F                                        ///< Minimum pressure required to initiate the dry bicart fill process.
 #define DRY_BICART_FILL_COMPLETE_SUPPLY_PRESSURE    6.0F                                        ///< Maximum pressure allowed at bicart fill during supply process/state
 #define DRY_BICART_FILL_INITIATE_SUPPLY_PRESSURE    3.0F                                        ///< Minimum pressure required to initiate the dry bicart fill during supply process/state
+#define MAX_DRY_BICART_FILL_COMPLETE_PRESSURE       15
 
 #define DRY_BICART_DEFAULT_MAX_FILL_CYCLE_CNT       10                                          ///< Default max fill cycle allowed for dry bicart fill/mix with water.
 #define DRY_BICART_MAX_FILL_CYCLE_CNT               30                                          ///< Max fill cycle allowed (by override) for dry bicart fill/mix with water.
@@ -1174,7 +1178,7 @@
         //if(FP_MODE_GENP == getCurrentFPOperationMode())
         {
             // TODO: pre gen should start the D12 pump and D14 valve
-            //setValveState( D14_VALV, VALVE_STATE_OPEN );
+            setValveState( D14_VALV, VALVE_STATE_OPEN );
             setDialysatePumpTargetRPM( D12_PUMP, FRESH_DIAL_PUMP_INITIAL_RPM_B1_9_B2_0, TRUE );
 
             state = DRY_BICART_FILL_WATER_START_STATE;
@@ -1230,12 +1234,22 @@
     // Close dry bicart inlet water if bicart is filled with water
     if ( d66Pressure >= DRY_BICART_FILL_COMPLETE_PRESSURE )
     {
-        setValveState( D65_VALV, VALVE_STATE_CLOSED );
-        lastFillDurationInMS    = currentFillDurationInMS;
-        currentFillDurationInMS = calcTimeSince( dryBiCartFillStartTime );
-        //Increment number of fill cycle
-        biCartFillCycleCounter++;
-        state = DRY_BICART_DEGAS_START_STATE;
+        // to check the the maximum cart pressure during persistence on D66
+        if ( d66Pressure >= MAX_DRY_BICART_FILL_COMPLETE_PRESSURE )
+        {
+            setValveState( D65_VALV, VALVE_STATE_CLOSED );
+        }
+        // 200 ms persistence on D66 pressure
+        if ( TRUE == didTimeout( dryBiCartFillStartTime, DRY_BICART_FILL_PERSISTANCE_DURATION_MS ) )
+        {
+
+            setValveState( D65_VALV, VALVE_STATE_CLOSED );
+            lastFillDurationInMS    = currentFillDurationInMS;
+            currentFillDurationInMS = calcTimeSince( dryBiCartFillStartTime );
+            //Increment number of fill cycle
+            biCartFillCycleCounter++;
+            state = DRY_BICART_DEGAS_START_STATE;
+        }
     }
 
     //TODO:Handle timeout alarm for opening D65 valve too long
@@ -1549,6 +1563,7 @@
         setValveState( D80_VALV, VALVE_STATE_CLOSED );
 
         dryBiCarbSypplyVentStartTime = getMSTimerCount();
+        setValveState( D64_VALV, VALVE_STATE_CLOSED );
         state = BICARB_SUPPLY_VENT_START_STATE;
     }
     /*else if ( d66Pressure <= getDryBicartLowerCartPressure() )