diff --git a/src/Model/Pollutants/Pollutants.py b/src/Model/Pollutants/Pollutants.py
index 51d2460a..4faea270 100644
--- a/src/Model/Pollutants/Pollutants.py
+++ b/src/Model/Pollutants/Pollutants.py
@@ -307,6 +307,21 @@ class Pollutants(SQLSubModel):
     def data(self):
         return self._data
 
+    @data.setter
+    def data(self, data):
+        self._data = [PollutantCharacteristics(type=int(data[0]),
+                                               diametre=float(data[1]),
+                                               rho=float(data[2]),
+                                               porosity=float(data[3]),
+                                               cdc_riv=float(data[4]),
+                                               cdc_cas=float(data[5]),
+                                               apd=float(data[6]),
+                                               ac=float(data[7]),
+                                               bc=float(data[8]),
+                                               pollutant=self,
+                                               status=self._status
+                                              )]
+
     @classmethod
     def _db_create(cls, execute, ext=""):
         execute(f"""
@@ -397,7 +412,7 @@ class Pollutants(SQLSubModel):
 
                 data["pollutant"] = new_pollutant
                 new_pollutant._data = PollutantCharacteristics._db_load(
-                    execute, data.copy()
+                    execute, data=data
                 )
 
                 loaded.add(pid)
@@ -421,7 +436,7 @@ class Pollutants(SQLSubModel):
             f"AND scenario = {self._status.scenario_id}"
         )
         execute(
-            f"DELETE FROM pollutants_characteristics " +
+            "DELETE FROM pollutants_characteristics " +
             f"WHERE pollutant = {self.id} " +
             f"AND scenario = {self._status.scenario_id}"
         )
diff --git a/src/Solver/AdisTS.py b/src/Solver/AdisTS.py
index e324a9b1..e5fcf313 100644
--- a/src/Solver/AdisTS.py
+++ b/src/Solver/AdisTS.py
@@ -260,7 +260,7 @@ class AdisTS(CommandLineSolver):
     _nodes_views = set()
 
     def get_reach_name(self, reach):
-        return f"Reach_{reach.id:>3}".replace(" ", "0")
+        return f"Reach_{reach.pamhyr_id:>3}".replace(" ", "0")
 
     def get_node_name(self, node):
         """Generate a 3 char name for node
@@ -271,7 +271,7 @@ class AdisTS(CommandLineSolver):
         Returns:
             A 3 char name string
         """
-        n = node.id
+        n = node.pamhyr_id
 
         # print("node name id: ", n)
 
@@ -401,9 +401,9 @@ class AdisTSwc(AdisTS):
         ) as f:
             for LC in POL_LC:
                 reach = next(filter(
-                    lambda edge: edge.id == LC.edge, study.river.edges()
+                    lambda edge: edge.id == LC.edge, study.river.enable_edges()
                 ))  # .name
-                reach_name = self.get_reach_name(self, reach)
+                reach_name = self.get_reach_name(reach)
                 f.write(f"${reach_name} {LC.begin_rk} {LC.end_rk}\n")
                 f.write(f"*temps   |débit massique (kg/s)\n")
                 f.write(f"*---------++++++++++\n")
diff --git a/src/View/Pollutants/UndoCommand.py b/src/View/Pollutants/UndoCommand.py
index d83c5e2b..fa612ddc 100644
--- a/src/View/Pollutants/UndoCommand.py
+++ b/src/View/Pollutants/UndoCommand.py
@@ -80,7 +80,7 @@ class AddCommand(QUndoCommand):
             self._new = self._pollutants_lst.new(
                 self._pollutants_lst, self._index
             )
-            self._new._data = [[0, 0., 0., 0., 0., 0., 0., 0., 0.]]
+            self._new.data = [0, 0., 0., 0., 0., 0., 0., 0., 0.]
             self._new_ic_adists = self._data.new(self._index, self._new.id)
         else:
             self._pollutants_lst.insert(self._index, self._new)