Index: firmware/App/Controllers/DryBiCart.c
===================================================================
diff -u -r5a0b55438edfba94b442d8a62384574821cb1679 -rebc66999208b337d8cdef22c07f73d47bb0720a4
--- firmware/App/Controllers/DryBiCart.c	(.../DryBiCart.c)	(revision 5a0b55438edfba94b442d8a62384574821cb1679)
+++ firmware/App/Controllers/DryBiCart.c	(.../DryBiCart.c)	(revision ebc66999208b337d8cdef22c07f73d47bb0720a4)
@@ -1103,7 +1103,9 @@
 {
     BICARB_CHAMBER_FILL_EXEC_STATE_T state  = BICARB_CARTRIDGE_FILL_WATER_START_STATE;
 
+#ifdef __D65_OPENING_DISABLED__
     if ( TRUE == isDryBicartBalChamberFillWindowOpen() )
+#endif
     {
         // Close vent valves and descaling valve
         setValveState( D80_VALV, VALVE_STATE_CLOSED );
@@ -1136,6 +1138,7 @@
     F32 d66Pressure                         = getFilteredPressure( D66_PRES );
     F32 fillCompletePressure                = GET_FILL_COMPLETE_PRESSURE_PSI;
 
+#ifdef __D65_OPENING_DISABLED__
     if ( FALSE == isDryBicartBalChamberFillWindowOpen() )
     {
         setValveState( D65_VALV, VALVE_STATE_CLOSED );
@@ -1144,7 +1147,7 @@
     {
         setValveState( D65_VALV, VALVE_STATE_OPEN );
     }
-
+#endif
     // check D66 pressure greater than or equal to  17 PSI
     if ( d66Pressure >= fillCompletePressure )
     {
@@ -1249,9 +1252,14 @@
         {
             drybicartPersistenceOnLowercartPressureStartTime = getMSTimerCount();
         }
+
+#ifdef __D65_OPENING_DISABLED__
         // 200 ms persistence on D66 pressure
         if ( ( TRUE == didTimeout( drybicartPersistenceOnLowercartPressureStartTime, DRY_BICART_PERSISTENCE_DURATION_MS ) ) &&
              ( TRUE == isDryBicartBalChamberFillWindowOpen() ) )
+#else
+        if ( TRUE == didTimeout( drybicartPersistenceOnLowercartPressureStartTime, DRY_BICART_PERSISTENCE_DURATION_MS ) )
+#endif
         {
             setValveState( D65_VALV, VALVE_STATE_OPEN );
             drybicartPersistenceOnLowercartPressureStartTime = 0;