Index: dam engine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingSellmeijer4Forces/DamPipingSellmeijer4ForcesKernelWrapper.cs
===================================================================
diff -u -r739 -r763
--- dam engine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingSellmeijer4Forces/DamPipingSellmeijer4ForcesKernelWrapper.cs	(.../DamPipingSellmeijer4ForcesKernelWrapper.cs)	(revision 739)
+++ dam engine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingSellmeijer4Forces/DamPipingSellmeijer4ForcesKernelWrapper.cs	(.../DamPipingSellmeijer4ForcesKernelWrapper.cs)	(revision 763)
@@ -38,9 +38,6 @@
             kernelDataOutput = damOutput;
             if (damKernelInput.SubSoilScenario.SegmentFailureMechanismType == FailureMechanismSystemType.Piping)
             {
-                const double cDefaultWaterViscosity = 1.33E-06;
-                const double factorMeterToMicroMeter = 1000000.0;
-
                 var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;
                 var surfaceLine = damKernelInput.Location.SurfaceLine;
                 var location = damKernelInput.Location;
@@ -73,7 +70,7 @@
                     dCoverLayer = DamPipingHelper.DetermineHeightCoverLayer(topLevelAquifer, surfaceLevel);
 
                     var aquiferLayer = SoilProfile1DAquiferLayerCombiner.CombineLayers(soilProfile1D, upliftLocationAndResult.LayerWhereUpliftOccuresId);
-                    d70 = aquiferLayer.D70 * factorMeterToMicroMeter;
+                    d70 = aquiferLayer.D70 * Physics.FactorMeterToMicroMeter;
 
                     aquiferHeight = aquiferLayer.Height;
                     permeabilityKx = aquiferLayer.PermeabilityKx;
@@ -102,7 +99,7 @@
                     DTotal = dCoverLayer,
                     SeepageLength = seepageLength,
                     // specific Sellmeijer 4 Forces
-                    WaterViscosity = cDefaultWaterViscosity,
+                    WaterViscosity = Physics.WaterViscosity,
                     WhitesConstant = inBetweenAquiferlayerSoil.WhitesConstant,
                     BeddingAngle = inBetweenAquiferlayerSoil.BeddingAngle,
                     D70 = d70,