diff --git a/wntr/tests/test_epanet_io.py b/wntr/tests/test_epanet_io.py
index e51b547d0..8414ca127 100644
--- a/wntr/tests/test_epanet_io.py
+++ b/wntr/tests/test_epanet_io.py
@@ -701,11 +701,11 @@ def test_headloss_formula_roughness_units(self):
                 temp = results.node['pressure'].loc[0,wn.junction_name_list]
                 pressure[headloss+', '+units] = temp
         
-        import matplotlib.pylab as plt
-        import pandas as pd
-        plt.figure()
-        pd.DataFrame(pressure).plot.bar()
-        plt.legend() #loc='lower right')
+        #import matplotlib.pylab as plt
+        #import pandas as pd
+        #plt.figure()
+        #pd.DataFrame(pressure).plot.bar()
+        #plt.legend() #loc='lower right')
         
         ## Compares all results to H-W, GPM
         threshold = 0.55