updated Ausgleichbecken_steady_state test to run longer and

run empty at the end on purpose

Ausgleichsbecken/Ausgleichsbecken_class_file.py

@@ -225,8 +225,8 @@ class Ausgleichsbecken_class:
         delta_level = net_flux*timestep/self.area
         level_new = (self.level+delta_level)
         # raise exception error if level in reservoir falls below 0.01 ######################### has to be commented out if used in loop
-        # if level_new < 0.01:
-        #     raise Exception('Reservoir ran emtpy')
+        if level_new < 0.01:
+            raise Exception('Reservoir ran emtpy')
         # set flag is necessary because update_level() is used to get a halfstep value in the time evoultion
         if set_flag == True:
             self.set_level(level_new,display_warning=False)