Index: Riskeer/Piping/src/Riskeer.Piping.KernelWrapper/PipingCalculator.cs
===================================================================
diff -u -r86594ccd7329d320872573a1d066fe18959d3cea -r0ae46890a124e95e3746e00e9fcb8c392881a2e0
--- Riskeer/Piping/src/Riskeer.Piping.KernelWrapper/PipingCalculator.cs	(.../PipingCalculator.cs)	(revision 86594ccd7329d320872573a1d066fe18959d3cea)
+++ Riskeer/Piping/src/Riskeer.Piping.KernelWrapper/PipingCalculator.cs	(.../PipingCalculator.cs)	(revision 0ae46890a124e95e3746e00e9fcb8c392881a2e0)
@@ -235,11 +235,12 @@
         private IEffectiveThicknessCalculator CreateEffectiveThicknessCalculator()
         {
             IEffectiveThicknessCalculator calculator = factory.CreateEffectiveThicknessCalculator();
-            calculator.ExitPointXCoordinate = input.ExitPointXCoordinate;
-            calculator.PhreaticLevel = input.PhreaticLevelExit;
-            calculator.SoilProfile = CreateSoilProfile();
-            calculator.SurfaceLine = CreateSurfaceLine();
-            calculator.VolumicWeightOfWater = input.WaterVolumetricWeight;
+            calculator.SetExitPointXCoordinate(input.ExitPointXCoordinate);
+            calculator.SetPhreaticLevel(input.PhreaticLevelExit);
+            calculator.SetSoilProfile(CreateSoilProfile());
+            calculator.SetSurfaceLine(CreateSurfaceLine());
+            calculator.SetVolumicWeightOfWater(input.WaterVolumetricWeight);
+            
             return calculator;
         }
 
Index: Riskeer/Piping/src/Riskeer.Piping.KernelWrapper/SubCalculator/EffectiveThicknessCalculator.cs
===================================================================
diff -u -r86594ccd7329d320872573a1d066fe18959d3cea -r0ae46890a124e95e3746e00e9fcb8c392881a2e0
--- Riskeer/Piping/src/Riskeer.Piping.KernelWrapper/SubCalculator/EffectiveThicknessCalculator.cs	(.../EffectiveThicknessCalculator.cs)	(revision 86594ccd7329d320872573a1d066fe18959d3cea)
+++ Riskeer/Piping/src/Riskeer.Piping.KernelWrapper/SubCalculator/EffectiveThicknessCalculator.cs	(.../EffectiveThicknessCalculator.cs)	(revision 0ae46890a124e95e3746e00e9fcb8c392881a2e0)
@@ -39,52 +39,37 @@
             wrappedCalculator = new Deltares.WTIPiping.EffectiveThicknessCalculator();
         }
 
-        public double ExitPointXCoordinate
+        public double EffectiveHeight
         {
-            set
+            get
             {
-                wrappedCalculator.ExitPointXCoordinate = value;
+                return wrappedCalculator.EffectiveHeight;
             }
         }
 
-        public double PhreaticLevel
+        public void SetExitPointXCoordinate(double exitPointXCoordinate)
         {
-            set
-            {
-                wrappedCalculator.PhreaticLevel = value;
-            }
+            wrappedCalculator.ExitPointXCoordinate = exitPointXCoordinate;
         }
 
-        public double VolumicWeightOfWater
+        public void SetPhreaticLevel(double phreaticLevel)
         {
-            set
-            {
-                wrappedCalculator.VolumicWeightOfWater = value;
-            }
+            wrappedCalculator.PhreaticLevel = phreaticLevel;
         }
 
-        public PipingProfile SoilProfile
+        public void SetVolumicWeightOfWater(double volumicWeightOfWater)
         {
-            set
-            {
-                wrappedCalculator.SoilProfile = value;
-            }
+            wrappedCalculator.VolumicWeightOfWater = volumicWeightOfWater;
         }
 
-        public PipingSurfaceLine SurfaceLine
+        public void SetSoilProfile(PipingProfile soilProfile)
         {
-            set
-            {
-                wrappedCalculator.SurfaceLine = value;
-            }
+            wrappedCalculator.SoilProfile = soilProfile;
         }
 
-        public double EffectiveHeight
+        public void SetSurfaceLine(PipingSurfaceLine surfaceLine)
         {
-            get
-            {
-                return wrappedCalculator.EffectiveHeight;
-            }
+            wrappedCalculator.SurfaceLine = surfaceLine;
         }
 
         public List<string> Validate()
Index: Riskeer/Piping/src/Riskeer.Piping.KernelWrapper/SubCalculator/IEffectiveThicknessCalculator.cs
===================================================================
diff -u -r86594ccd7329d320872573a1d066fe18959d3cea -r0ae46890a124e95e3746e00e9fcb8c392881a2e0
--- Riskeer/Piping/src/Riskeer.Piping.KernelWrapper/SubCalculator/IEffectiveThicknessCalculator.cs	(.../IEffectiveThicknessCalculator.cs)	(revision 86594ccd7329d320872573a1d066fe18959d3cea)
+++ Riskeer/Piping/src/Riskeer.Piping.KernelWrapper/SubCalculator/IEffectiveThicknessCalculator.cs	(.../IEffectiveThicknessCalculator.cs)	(revision 0ae46890a124e95e3746e00e9fcb8c392881a2e0)
@@ -32,27 +32,27 @@
         /// <summary>
         /// Sets the exit point's x-coordinate.
         /// </summary>
-        double ExitPointXCoordinate { set; }
+        void SetExitPointXCoordinate(double exitPointXCoordinate);
 
         /// <summary>
         /// Sets the phreatic level at the exit point.
         /// </summary>
-        double PhreaticLevel { set; }
+        void SetPhreaticLevel(double phreaticLevel);
 
         /// <summary>
         /// Sets the volumic weight of water.
         /// </summary>
-        double VolumicWeightOfWater { set; }
+        void SetVolumicWeightOfWater(double volumicWeightOfWater);
 
         /// <summary>
         /// Sets the soil profile.
         /// </summary>
-        PipingProfile SoilProfile { set; }
+        void SetSoilProfile(PipingProfile soilProfile);
 
         /// <summary>
         /// Sets the surface line.
         /// </summary>
-        PipingSurfaceLine SurfaceLine { set; }
+        void SetSurfaceLine(PipingSurfaceLine surfaceLine);
 
         /// <summary>
         /// Gets the effective thickness of the cover layer.
Index: Riskeer/Piping/test/Riskeer.Piping.KernelWrapper.TestUtil/SubCalculator/EffectiveThicknessCalculatorStub.cs
===================================================================
diff -u -r86594ccd7329d320872573a1d066fe18959d3cea -r0ae46890a124e95e3746e00e9fcb8c392881a2e0
--- Riskeer/Piping/test/Riskeer.Piping.KernelWrapper.TestUtil/SubCalculator/EffectiveThicknessCalculatorStub.cs	(.../EffectiveThicknessCalculatorStub.cs)	(revision 86594ccd7329d320872573a1d066fe18959d3cea)
+++ Riskeer/Piping/test/Riskeer.Piping.KernelWrapper.TestUtil/SubCalculator/EffectiveThicknessCalculatorStub.cs	(.../EffectiveThicknessCalculatorStub.cs)	(revision 0ae46890a124e95e3746e00e9fcb8c392881a2e0)
@@ -40,12 +40,13 @@
         /// </summary>
         public bool Validated { get; private set; }
 
-        public double ExitPointXCoordinate { get; set; }
-        public double PhreaticLevel { get; set; }
-        public double VolumicWeightOfWater { get; set; }
-        public PipingProfile SoilProfile { get; set; }
-        public PipingSurfaceLine SurfaceLine { get; set; }
+        public double ExitPointXCoordinate { get; private set; }
 
+        public double PhreaticLevel { get; private set; }
+        public double VolumicWeightOfWater { get; private set; }
+        public PipingProfile SoilProfile { get; private set; }
+        public PipingSurfaceLine SurfaceLine { get; private set; }
+
         public double EffectiveHeight
         {
             get
@@ -54,6 +55,31 @@
             }
         }
 
+        public void SetExitPointXCoordinate(double exitPointXCoordinate)
+        {
+            ExitPointXCoordinate = exitPointXCoordinate;
+        }
+
+        public void SetPhreaticLevel(double phreaticLevel)
+        {
+            PhreaticLevel = phreaticLevel;
+        }
+
+        public void SetVolumicWeightOfWater(double volumicWeightOfWater)
+        {
+            VolumicWeightOfWater = volumicWeightOfWater;
+        }
+
+        public void SetSoilProfile(PipingProfile soilProfile)
+        {
+            SoilProfile = soilProfile;
+        }
+
+        public void SetSurfaceLine(PipingSurfaceLine surfaceLine)
+        {
+            SurfaceLine = surfaceLine;
+        }
+
         public List<string> Validate()
         {
             Validated = true;