Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/PlLinesCreator/PlLinesCreator.cs
===================================================================
diff -u -r2111 -r2145
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/PlLinesCreator/PlLinesCreator.cs	(.../PlLinesCreator.cs)	(revision 2111)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/PlLinesCreator/PlLinesCreator.cs	(.../PlLinesCreator.cs)	(revision 2145)
@@ -121,14 +121,10 @@
             double waterLevel = WaterLevelToUse();
             if (HeadInPlLine4 == null)
             {
-                // If no hydraulic shortcut and no value known for headPl4 then use polderlevel for headPL4
-                if (damType == DamType.Primary)
-                {
-                    return waterLevel;
-                }
-                return waterLevelPolder;                
+                // If no value known for headPl4 then use water level (buitenwaterstand) for headPL4
+                return waterLevel;                
             }
-            // If no hydraulic shortcut and value is specified for headPl4 then use this value for headPL4
+            // If value is specified for headPl4 then use this value for headPL4
             return HeadInPlLine4.Value;                    
         }