Index: Ringtoets/Common/src/Ringtoets.Common.Forms/PropertyClasses/UseBreakWaterProperties.cs
===================================================================
diff -u -rbb80820ff4a4e09793da242cb7b36ca2bce59c32 -r7918a30f6ddc1ba9067a5eb461a1d7a8cb5bc8a0
--- Ringtoets/Common/src/Ringtoets.Common.Forms/PropertyClasses/UseBreakWaterProperties.cs	(.../UseBreakWaterProperties.cs)	(revision bb80820ff4a4e09793da242cb7b36ca2bce59c32)
+++ Ringtoets/Common/src/Ringtoets.Common.Forms/PropertyClasses/UseBreakWaterProperties.cs	(.../UseBreakWaterProperties.cs)	(revision 7918a30f6ddc1ba9067a5eb461a1d7a8cb5bc8a0)
@@ -20,7 +20,9 @@
 // All rights reserved.
 
 using System;
+using System.Collections.Generic;
 using System.ComponentModel;
+using Core.Common.Base;
 using Core.Common.Base.Data;
 using Core.Common.Gui.Attributes;
 using Core.Common.Utils;
@@ -30,6 +32,7 @@
 using Ringtoets.Common.Data.DikeProfiles;
 using Ringtoets.Common.Forms.Properties;
 using Ringtoets.Common.Forms.TypeConverters;
+using Ringtoets.Common.Service;
 
 namespace Ringtoets.Common.Forms.PropertyClasses
 {
@@ -84,7 +87,7 @@
             set
             {
                 data.UseBreakWater = value;
-                data.NotifyObservers();
+                NotifyPropertyChanged();
             }
         }
 
@@ -108,7 +111,7 @@
                 if (value.HasValue)
                 {
                     data.BreakWater.Type = value.Value;
-                    data.NotifyObservers();
+                    NotifyPropertyChanged();
                 }
             }
         }
@@ -131,7 +134,7 @@
             set
             {
                 data.BreakWater.Height = value;
-                data.NotifyObservers();
+                NotifyPropertyChanged();
             }
         }
 
@@ -147,5 +150,15 @@
         {
             return string.Empty;
         }
+
+        private void NotifyPropertyChanged()
+        {
+            IEnumerable<IObservable> affectedCalculation = RingtoetsCommonDataSynchronizationService.ClearCalculationOutput(calculationToUpdate);
+            foreach (var calculation in affectedCalculation)
+            {
+                calculation.NotifyObservers();
+            }
+            data.NotifyObservers();
+        }
     }
 }
\ No newline at end of file