diff --git a/FluidDynamics/BaseClasses/test_LiquidNode.mo b/FluidDynamics/BaseClasses/test_LiquidNode.mo
index 04ade7bfabc0f1c00291ec78be6792adb87785da..7753481508fa16ca264dd31defaca8c5030b5681 100644
--- a/FluidDynamics/BaseClasses/test_LiquidNode.mo
+++ b/FluidDynamics/BaseClasses/test_LiquidNode.mo
@@ -1,7 +1,11 @@
 within TAeZoSysPro_testsuite.FluidDynamics.BaseClasses;
 
 model test_LiquidNode
-  TAeZoSysPro.FluidDynamics.BasesClasses.LiquidNode liquidNode(nPorts = 0)  annotation(
+  TAeZoSysPro.FluidDynamics.BasesClasses.LiquidNode liquidNode(V_start = 1, nPorts = 1)  annotation(
     Placement(visible = true, transformation(origin = {-3.55271e-15, 3.55271e-15}, extent = {{-20, -20}, {20, 20}}, rotation = 0)));
+  TAeZoSysPro.FluidDynamics.Sources.Boundary_p boundary_p(redeclare package Medium = Modelica.Media.Water.WaterIF97_ph, nPorts = 1)  annotation(
+    Placement(visible = true, transformation(origin = {-60, 60}, extent = {{-20, -20}, {20, 20}}, rotation = 0)));
 equation
+  connect(boundary_p.ports[1], liquidNode.fluidPort[1]) annotation(
+    Line(points = {{-40, 60}, {10, 60}, {10, 18}, {10, 18}}, color = {0, 127, 255}));
 end test_LiquidNode;