Index: src/Plugins/Wti/Wti.Controller/PipingDataNodeController.cs
===================================================================
diff -u -r136165beb75e7d056353221b314c2a088374c32c -r5fc71a385897af92ccb092f2f969b5709afab85a
--- src/Plugins/Wti/Wti.Controller/PipingDataNodeController.cs	(.../PipingDataNodeController.cs)	(revision 136165beb75e7d056353221b314c2a088374c32c)
+++ src/Plugins/Wti/Wti.Controller/PipingDataNodeController.cs	(.../PipingDataNodeController.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
@@ -11,9 +11,14 @@
 {
     public class PipingDataNodeController : IContextMenuProvider
     {
-        private ILog logger = LogManager.GetLogger(typeof(PipingCalculationInput));
-        private PipingDataNodePresenter nodePresenter = new PipingDataNodePresenter();
+        private readonly ILog logger = LogManager.GetLogger(typeof(PipingCalculationInput));
+        private readonly PipingDataNodePresenter nodePresenter = new PipingDataNodePresenter();
 
+        public PipingDataNodeController()
+        {
+            nodePresenter.ContextMenu = GetContextMenu;
+        }
+
         public PipingDataNodePresenter NodePresenter
         {
             get
@@ -22,11 +27,6 @@
             }
         }
 
-        public PipingDataNodeController()
-        {
-            nodePresenter.ContextMenu = GetContextMenu;
-        }
-
         public IMenuItem GetContextMenu(object pipingData)
         {
             var contextMenu = new PipingContextMenuStrip((PipingData) pipingData);
@@ -66,9 +66,9 @@
                 var pipingCalculation = new PipingCalculation(input);
                 var pipingResult = pipingCalculation.Calculate();
 
-                pipingData.Output = new PipingOutput(pipingResult.UpliftZValue, 
-                    pipingResult.UpliftFactorOfSafety, 
-                    pipingResult.HeaveZValue, pipingResult.HeaveFactorOfSafety, pipingResult.SellmeijerZValue, pipingResult.SellmeijerFactorOfSafety);
+                pipingData.Output = new PipingOutput(pipingResult.UpliftZValue,
+                                                     pipingResult.UpliftFactorOfSafety,
+                                                     pipingResult.HeaveZValue, pipingResult.HeaveFactorOfSafety, pipingResult.SellmeijerZValue, pipingResult.SellmeijerFactorOfSafety);
             }
             catch (PipingCalculationException e)
             {