Index: Ringtoets/Piping/src/Ringtoets.Piping.Primitives/PipingSoilProfile.cs
===================================================================
diff -u -re318f8ad1ae9ff8fabdb362d27e3db320af91ac0 -rd67d84b0725d8e7192f1b8e2649eab0a5b1dcb69
--- Ringtoets/Piping/src/Ringtoets.Piping.Primitives/PipingSoilProfile.cs	(.../PipingSoilProfile.cs)	(revision e318f8ad1ae9ff8fabdb362d27e3db320af91ac0)
+++ Ringtoets/Piping/src/Ringtoets.Piping.Primitives/PipingSoilProfile.cs	(.../PipingSoilProfile.cs)	(revision d67d84b0725d8e7192f1b8e2649eab0a5b1dcb69)
@@ -144,10 +144,6 @@
                 int hashCode = Bottom.GetHashCode();
                 hashCode = (hashCode * 397) ^ Name.GetHashCode();
                 hashCode = (hashCode * 397) ^ (int) SoilProfileSourceType;
-                foreach (PipingSoilLayer layer in layers)
-                {
-                    hashCode = (hashCode * 397) ^ layer.GetHashCode();
-                }
                 return hashCode;
             }
         }