Index: Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Service/DuneErosionDataSynchronizationService.cs
===================================================================
diff -u -r20a3e0fe462e2afb58034a32ac56c063c7d9b5e2 -r5a9c0eb39b970859cfe987960e7775aaf2b9d7f1
--- Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Service/DuneErosionDataSynchronizationService.cs	(.../DuneErosionDataSynchronizationService.cs)	(revision 20a3e0fe462e2afb58034a32ac56c063c7d9b5e2)
+++ Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Service/DuneErosionDataSynchronizationService.cs	(.../DuneErosionDataSynchronizationService.cs)	(revision 5a9c0eb39b970859cfe987960e7775aaf2b9d7f1)
@@ -22,6 +22,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using Core.Common.Base;
 using Core.Common.Base.Geometry;
 using Ringtoets.Common.Data.Hydraulics;
 using Ringtoets.DuneErosion.Data;
@@ -84,5 +85,25 @@
                 }
             }
         }
+
+        public static IEnumerable<IObservable> ClearDuneLocationOutput(ObservableList<DuneLocation> locations)
+        {
+            if (locations == null)
+            {
+                throw new ArgumentNullException("locations");
+            }
+
+            return locations.SelectMany(ClearDuneLocationOutput)
+                            .ToArray();
+        }
+
+        private static IEnumerable<IObservable> ClearDuneLocationOutput(DuneLocation location)
+        {
+            if (location.Output != null)
+            {
+                location.Output = null;
+                yield return location;
+            }
+        }
     }
 }
\ No newline at end of file