Index: DamClients/DamUI/branches/DamUI 19.3/src/DamClientsLibrary/Deltares.Dam.Data/WaterBoardPostProcessRelativeProfiles.cs
===================================================================
diff -u -r3767 -r3774
--- DamClients/DamUI/branches/DamUI 19.3/src/DamClientsLibrary/Deltares.Dam.Data/WaterBoardPostProcessRelativeProfiles.cs	(.../WaterBoardPostProcessRelativeProfiles.cs)	(revision 3767)
+++ DamClients/DamUI/branches/DamUI 19.3/src/DamClientsLibrary/Deltares.Dam.Data/WaterBoardPostProcessRelativeProfiles.cs	(.../WaterBoardPostProcessRelativeProfiles.cs)	(revision 3774)
@@ -48,6 +48,7 @@
         /// <param name="characteristicPointType"></param>
         public static void CreateAbsoluteProfiles(WaterBoard waterBoard, CharacteristicPointType characteristicPointType)
         {
+            const double moveAccuracy = 1e-6;
             foreach (Dike dike in waterBoard.Dikes)
             {
                 foreach (Location location in dike.Locations)
@@ -101,7 +102,7 @@
                                 // If the top of the profile is moved below the top of the surface level, a gap appears which will be filled in later in the UI
                                 // to the combined 2D. However, for Piping calculation the 1D profile itself needs to start at least at the top of the surface line
                                 // too in order to perform a correct calculation. So extend the 1D profile here too!
-                                if (Math.Abs(deltaZ) > 1e-6 && profileTopLevel < topSurfaceline)
+                                if (Math.Abs(deltaZ) > moveAccuracy && profileTopLevel < topSurfaceline)
                                 {
                                     var newTopLayer = new SoilLayer1D
                                     {