diff --git a/bluemath_tk/waves/series.py b/bluemath_tk/waves/series.py
index e8e0174..a2fb394 100644
--- a/bluemath_tk/waves/series.py
+++ b/bluemath_tk/waves/series.py
@@ -335,10 +335,10 @@ def series_regular_monochromatic(waves):
     # waves properties
     T = waves["T"]
     H = waves["H"]
-    WL = waves["WL"]
+    #WL = waves["WL"]
     warmup = waves["warmup"]
     deltat = waves["deltat"]
-    tendc = waves["tendc"]
+    tendc = waves["comptime"]
 
     # series duration
     duration = tendc + int(warmup)
diff --git a/bluemath_tk/wrappers/swash/swash_wrapper.py b/bluemath_tk/wrappers/swash/swash_wrapper.py
index baaec99..08a66b0 100644
--- a/bluemath_tk/wrappers/swash/swash_wrapper.py
+++ b/bluemath_tk/wrappers/swash/swash_wrapper.py
@@ -7,7 +7,7 @@
 import xarray as xr
 from scipy.signal import find_peaks
 
-from ...waves.series import series_TMA, waves_dispersion
+from ...waves.series import series_TMA, waves_dispersion, series_regular_monochromatic
 from ...waves.spectra import spectral_analysis
 from ...waves.statistics import upcrossing
 from .._base_wrappers import BaseModelWrapper
@@ -206,7 +206,9 @@ def build_case(
             "gamma": case_context["gamma"],
             "deltat": case_context["deltat"],
         }
-        waves = series_TMA(waves=waves_dict, depth=self.depth_array[0])
+        #waves = series_TMA(waves=waves_dict, depth=self.depth_array[0])
+        waves = series_regular_monochromatic(waves=waves_dict)
+
         # Save the waves to a file
         self.write_array_in_file(
             array=waves, filename=os.path.join(case_dir, "waves.bnd")
@@ -736,10 +738,10 @@ def build_case(self, case_context: dict, case_dir: str) -> None:
         # Build the input vegetation file
         plants = np.zeros((len(self.depth_array)))
         plants[
-            int(self.fixed_parameters["Plants_ini"]) : int(
-                self.fixed_parameters["Plants_fin"]
-            )
-        ] = case_context["plants_density"]
+            int(
+                case_context["Plants_end"] - case_context["Wv"]
+            ) : int(case_context["Plants_end"])
+        ] = case_context["Nv"]
         np.savetxt(os.path.join(case_dir, "plants.txt"), plants, fmt="%.6f")