diff --git a/geos-processing/src/geos/processing/generic_processing_tools/SplitMesh.py b/geos-processing/src/geos/processing/generic_processing_tools/SplitMesh.py
index 2695c8f8..9d99aa86 100644
--- a/geos-processing/src/geos/processing/generic_processing_tools/SplitMesh.py
+++ b/geos-processing/src/geos/processing/generic_processing_tools/SplitMesh.py
@@ -83,6 +83,13 @@ def __init__( self, inputMesh: vtkUnstructuredGrid, speHandler: bool = False ) -
             self.logger = logging.getLogger( loggerTitle )
             self.logger.setLevel( logging.INFO )
             self.logger.propagate = False
+            handlers: list[ logging.Handler ] = self.logger.handlers
+            # Get the handler to specify if the logger already exist and have it
+            for handler in handlers:
+                # The CountWarningHandler can't be the handler to specify
+                if type( handler ) is not type( CountWarningHandler() ):
+                    self.handler = handler
+                    break
 
         counter: CountWarningHandler = CountWarningHandler()
         self.counter: CountWarningHandler
diff --git a/geos-processing/src/geos/processing/pre_processing/MeshQualityEnhanced.py b/geos-processing/src/geos/processing/pre_processing/MeshQualityEnhanced.py
index 0e75daff..076079ce 100644
--- a/geos-processing/src/geos/processing/pre_processing/MeshQualityEnhanced.py
+++ b/geos-processing/src/geos/processing/pre_processing/MeshQualityEnhanced.py
@@ -132,6 +132,7 @@ def __init__(
         self._allCellTypesExtended: tuple[ int, ...] = getAllCellTypesExtended()
         self._allCellTypes: tuple[ int, ...] = getAllCellTypes()
         self.speHandler: bool = speHandler
+        self.handler: logging.Handler
 
         # Logger
         self.logger: Logger
@@ -141,6 +142,13 @@ def __init__(
             self.logger = logging.getLogger( loggerTitle )
             self.logger.setLevel( logging.INFO )
             self.logger.propagate = False
+            handlers: list[ logging.Handler ] = self.logger.handlers
+            # Get the handler to specify if the logger already exist and have it
+            for handler in handlers:
+                # The CountWarningHandler can't be the handler to specify
+                if type( handler ) is not type( CountWarningHandler() ):
+                    self.handler = handler
+                    break
 
         counter: CountWarningHandler = CountWarningHandler()
         self.counter: CountWarningHandler
diff --git a/geos-pv/src/geos/pv/plugins/generic_processing/PVAttributeMapping.py b/geos-pv/src/geos/pv/plugins/generic_processing/PVAttributeMapping.py
index d6b07cab..20c29a0b 100644
--- a/geos-pv/src/geos/pv/plugins/generic_processing/PVAttributeMapping.py
+++ b/geos-pv/src/geos/pv/plugins/generic_processing/PVAttributeMapping.py
@@ -54,6 +54,8 @@
 
 """
 
+HANDLER: logging.Handler = VTKHandler()
+
 
 @smproxy.filter( name="PVAttributeMapping", label="Attribute Mapping" )
 @smhint.xml( f'<ShowInMenu category="{ FilterCategory.GENERIC_PROCESSING.value }"/>' )
@@ -76,7 +78,6 @@ def __init__( self: Self ) -> None:
         self.piece: Piece = Piece.CELLS
         self.clearAttributeNames = True
         self.attributeNames: list[ str ] = []
-        self.handler: logging.Handler = VTKHandler()
 
     @smproperty.intvector(
         name="AttributePiece",
@@ -190,8 +191,8 @@ def RequestData(
         attributeMappingFilter: AttributeMapping = AttributeMapping( meshFrom, outData, set( self.attributeNames ),
                                                                      self.piece, True )
 
-        if not isHandlerInLogger( self.handler, attributeMappingFilter.logger ):
-            attributeMappingFilter.setLoggerHandler( self.handler )
+        if not isHandlerInLogger( HANDLER, attributeMappingFilter.logger ):
+            attributeMappingFilter.setLoggerHandler( HANDLER )
 
         try:
             attributeMappingFilter.applyFilter()
diff --git a/geos-pv/src/geos/pv/plugins/generic_processing/PVClipToMainFrame.py b/geos-pv/src/geos/pv/plugins/generic_processing/PVClipToMainFrame.py
index 4c04589a..3461b134 100644
--- a/geos-pv/src/geos/pv/plugins/generic_processing/PVClipToMainFrame.py
+++ b/geos-pv/src/geos/pv/plugins/generic_processing/PVClipToMainFrame.py
@@ -36,6 +36,8 @@
 
 """
 
+HANDLER: logging.Handler = VTKHandler()
+
 
 @SISOFilter( category=FilterCategory.GENERIC_PROCESSING,
              decoratedLabel="Clip to the main frame",
@@ -45,10 +47,9 @@ class PVClipToMainFrame( VTKPythonAlgorithmBase ):
     def __init__( self ) -> None:
         """Init motherclass, filter and logger."""
         self._realFilter = ClipToMainFrame( speHandler=True )
-        self.handler: logging.Handler = VTKHandler()
 
-        if not isHandlerInLogger( self.handler, self._realFilter.logger ):
-            self._realFilter.SetLoggerHandler( self.handler )
+        if not isHandlerInLogger( HANDLER, self._realFilter.logger ):
+            self._realFilter.SetLoggerHandler( HANDLER )
 
     def ApplyFilter( self, inputMesh: vtkMultiBlockDataSet, outputMesh: vtkMultiBlockDataSet ) -> None:
         """Is applying clipToMainFrame filter.
diff --git a/geos-pv/src/geos/pv/plugins/generic_processing/PVCreateConstantAttributePerRegion.py b/geos-pv/src/geos/pv/plugins/generic_processing/PVCreateConstantAttributePerRegion.py
index 372ea2c3..bb8973aa 100644
--- a/geos-pv/src/geos/pv/plugins/generic_processing/PVCreateConstantAttributePerRegion.py
+++ b/geos-pv/src/geos/pv/plugins/generic_processing/PVCreateConstantAttributePerRegion.py
@@ -50,6 +50,8 @@
 
 """
 
+HANDLER: logging.Handler = VTKHandler()
+
 
 @SISOFilter( category=FilterCategory.GENERIC_PROCESSING,
              decoratedLabel="Create Constant Attribute Per Region",
@@ -72,7 +74,6 @@ def __init__( self: Self ) -> None:
 
         # Use the handler of paraview for the log.
         self.speHandler: bool = True
-        self.handler: logging.Handler = VTKHandler()
 
     # Settings of the attribute with the region indexes:
     @smproperty.stringvector(
@@ -292,8 +293,8 @@ def ApplyFilter( self, inputMesh: vtkDataSet, outputMesh: vtkDataSet ) -> None:
             self.speHandler,
         )
 
-        if not isHandlerInLogger( self.handler, createConstantAttributePerRegionFilter.logger ):
-            createConstantAttributePerRegionFilter.setLoggerHandler( self.handler )
+        if not isHandlerInLogger( HANDLER, createConstantAttributePerRegionFilter.logger ):
+            createConstantAttributePerRegionFilter.setLoggerHandler( HANDLER )
 
         try:
             createConstantAttributePerRegionFilter.applyFilter()
diff --git a/geos-pv/src/geos/pv/plugins/generic_processing/PVFillPartialArrays.py b/geos-pv/src/geos/pv/plugins/generic_processing/PVFillPartialArrays.py
index 547945aa..4a6e27d2 100644
--- a/geos-pv/src/geos/pv/plugins/generic_processing/PVFillPartialArrays.py
+++ b/geos-pv/src/geos/pv/plugins/generic_processing/PVFillPartialArrays.py
@@ -41,6 +41,8 @@
 
 """
 
+HANDLER: logging.Handler = VTKHandler()
+
 
 @SISOFilter( category=FilterCategory.GENERIC_PROCESSING,
              decoratedLabel="Fill Partial Arrays",
@@ -51,7 +53,6 @@ def __init__( self: Self, ) -> None:
         """Fill a partial attribute with constant value per component."""
         self.clearDictAttributesValues: bool = True
         self.dictAttributesValues: dict[ str, Union[ list[ Any ], None ] ] = {}
-        self.handler: logging.Handler = VTKHandler()
 
     @smproperty.xml( """
         <StringVectorProperty
@@ -108,8 +109,8 @@ def ApplyFilter( self, inputMesh: vtkMultiBlockDataSet, outputMesh: vtkMultiBloc
             speHandler=True,
         )
 
-        if not isHandlerInLogger( self.handler, fillPartialArraysFilter.logger ):
-            fillPartialArraysFilter.setLoggerHandler( self.handler )
+        if not isHandlerInLogger( HANDLER, fillPartialArraysFilter.logger ):
+            fillPartialArraysFilter.setLoggerHandler( HANDLER )
 
         try:
             fillPartialArraysFilter.applyFilter()
diff --git a/geos-pv/src/geos/pv/plugins/generic_processing/PVMergeBlocksEnhanced.py b/geos-pv/src/geos/pv/plugins/generic_processing/PVMergeBlocksEnhanced.py
index eaeecd05..33017052 100644
--- a/geos-pv/src/geos/pv/plugins/generic_processing/PVMergeBlocksEnhanced.py
+++ b/geos-pv/src/geos/pv/plugins/generic_processing/PVMergeBlocksEnhanced.py
@@ -53,6 +53,8 @@
     - nan for float data.
 """
 
+HANDLER: logging.Handler = VTKHandler()
+
 
 @smproxy.filter( name="PVMergeBlocksEnhanced", label="Merge Blocks Keeping Partial Attributes" )
 @smhint.xml( f'<ShowInMenu category="{ FilterCategory.GENERIC_PROCESSING.value }"/>' )
@@ -68,7 +70,6 @@ def __init__( self: Self ) -> None:
             inputType="vtkMultiBlockDataSet",
             outputType="vtkUnstructuredGrid",
         )
-        self.handler: logging.Handler = VTKHandler()
 
     def RequestDataObject(
         self: Self,
@@ -118,8 +119,8 @@ def RequestData(
 
         mergeBlockEnhancedFilter: MergeBlockEnhanced = MergeBlockEnhanced( inputMesh, True )
 
-        if not isHandlerInLogger( self.handler, mergeBlockEnhancedFilter.logger ):
-            mergeBlockEnhancedFilter.setLoggerHandler( self.handler )
+        if not isHandlerInLogger( HANDLER, mergeBlockEnhancedFilter.logger ):
+            mergeBlockEnhancedFilter.setLoggerHandler( HANDLER )
 
         try:
             mergeBlockEnhancedFilter.applyFilter()
diff --git a/geos-pv/src/geos/pv/plugins/generic_processing/PVSplitMesh.py b/geos-pv/src/geos/pv/plugins/generic_processing/PVSplitMesh.py
index 81da5b81..7a3b15d5 100644
--- a/geos-pv/src/geos/pv/plugins/generic_processing/PVSplitMesh.py
+++ b/geos-pv/src/geos/pv/plugins/generic_processing/PVSplitMesh.py
@@ -39,13 +39,14 @@
 
 """
 
+HANDLER: logging.Handler = VTKHandler()
+
 
 @SISOFilter( category=FilterCategory.GENERIC_PROCESSING, decoratedLabel="Split Mesh", decoratedType="vtkPointSet" )
 class PVSplitMesh( VTKPythonAlgorithmBase ):
 
     def __init__( self: Self ) -> None:
         """Split mesh cells."""
-        self.handler: logging.Handler = VTKHandler()
 
     def ApplyFilter( self: Self, inputMesh: vtkPointSet, outputMesh: vtkPointSet ) -> None:
         """Apply vtk filter.
@@ -55,8 +56,8 @@ def ApplyFilter( self: Self, inputMesh: vtkPointSet, outputMesh: vtkPointSet ) -
             outputMesh: Output mesh.
         """
         splitMeshFilter: SplitMesh = SplitMesh( inputMesh, True )
-        if not isHandlerInLogger( self.handler, splitMeshFilter.logger ):
-            splitMeshFilter.setLoggerHandler( self.handler )
+        if not isHandlerInLogger( HANDLER, splitMeshFilter.logger ):
+            splitMeshFilter.setLoggerHandler( HANDLER )
 
         try:
             splitMeshFilter.applyFilter()
diff --git a/geos-pv/src/geos/pv/plugins/post_processing/PVGeomechanicsCalculator.py b/geos-pv/src/geos/pv/plugins/post_processing/PVGeomechanicsCalculator.py
index 693a5f5f..0f707256 100644
--- a/geos-pv/src/geos/pv/plugins/post_processing/PVGeomechanicsCalculator.py
+++ b/geos-pv/src/geos/pv/plugins/post_processing/PVGeomechanicsCalculator.py
@@ -73,6 +73,8 @@
 
 """
 
+HANDLER: logging.Handler = VTKHandler()
+
 loggerTitle: str = "Geomechanics Calculator"
 
 
@@ -93,10 +95,9 @@ def __init__( self: Self ) -> None:
         self.rockCohesion: float = DEFAULT_ROCK_COHESION
         self.frictionAngle: float = DEFAULT_FRICTION_ANGLE_DEG
 
-        self.handler: logging.Handler = VTKHandler()
         self.logger = logging.getLogger( loggerTitle )
         self.logger.setLevel( logging.INFO )
-        self.logger.addHandler( self.handler )
+        self.logger.addHandler( HANDLER )
         self.logger.propagate = False
 
         counter: CountWarningHandler = CountWarningHandler()
@@ -265,8 +266,8 @@ def ApplyFilter(
                 speHandler=True,
             )
 
-            if not isHandlerInLogger( self.handler, geomechanicsCalculatorFilter.logger ):
-                geomechanicsCalculatorFilter.setLoggerHandler( self.handler )
+            if not isHandlerInLogger( HANDLER, geomechanicsCalculatorFilter.logger ):
+                geomechanicsCalculatorFilter.setLoggerHandler( HANDLER )
 
             geomechanicsCalculatorFilter.physicalConstants.grainBulkModulus = self.grainBulkModulus
             geomechanicsCalculatorFilter.physicalConstants.specificDensity = self.specificDensity
@@ -303,8 +304,8 @@ def ApplyFilter(
                     True,
                 )
 
-                if not isHandlerInLogger( self.handler, geomechanicsCalculatorFilter.logger ):
-                    geomechanicsCalculatorFilter.setLoggerHandler( self.handler )
+                if not isHandlerInLogger( HANDLER, geomechanicsCalculatorFilter.logger ):
+                    geomechanicsCalculatorFilter.setLoggerHandler( HANDLER )
 
                 geomechanicsCalculatorFilter.physicalConstants.grainBulkModulus = self.grainBulkModulus
                 geomechanicsCalculatorFilter.physicalConstants.specificDensity = self.specificDensity
diff --git a/geos-pv/src/geos/pv/plugins/post_processing/PVGeomechanicsWorkflow.py b/geos-pv/src/geos/pv/plugins/post_processing/PVGeomechanicsWorkflow.py
index 0b446062..efb1c089 100644
--- a/geos-pv/src/geos/pv/plugins/post_processing/PVGeomechanicsWorkflow.py
+++ b/geos-pv/src/geos/pv/plugins/post_processing/PVGeomechanicsWorkflow.py
@@ -85,6 +85,7 @@
 
 """
 
+HANDLER: logging.Handler = VTKHandler()
 loggerTitle: str = "GEOS Geomechanics Workflow"
 
 
@@ -139,10 +140,9 @@ def __init__( self: Self ) -> None:
         self.rockCohesion: float = DEFAULT_ROCK_COHESION
         self.frictionAngle: float = DEFAULT_FRICTION_ANGLE_DEG
 
-        self.handler: logging.Handler = VTKHandler()
         self.logger = logging.getLogger( loggerTitle )
         self.logger.setLevel( logging.INFO )
-        self.logger.addHandler( self.handler )
+        self.logger.addHandler( HANDLER )
         self.logger.propagate = False
 
         counter: CountWarningHandler = CountWarningHandler()
diff --git a/geos-pv/src/geos/pv/plugins/post_processing/PVGeosBlockExtractAndMerge.py b/geos-pv/src/geos/pv/plugins/post_processing/PVGeosBlockExtractAndMerge.py
index dff27de7..62e415a8 100644
--- a/geos-pv/src/geos/pv/plugins/post_processing/PVGeosBlockExtractAndMerge.py
+++ b/geos-pv/src/geos/pv/plugins/post_processing/PVGeosBlockExtractAndMerge.py
@@ -82,6 +82,7 @@
 
 """
 
+HANDLER: logging.Handler = VTKHandler()
 loggerTitle: str = "Extract & Merge GEOS Block"
 
 
@@ -129,10 +130,9 @@ def __init__( self: Self ) -> None:
 
         self.outputCellsT0: vtkMultiBlockDataSet = vtkMultiBlockDataSet()
 
-        self.handler: logging.Handler = VTKHandler()
         self.logger = logging.getLogger( loggerTitle )
         self.logger.setLevel( logging.INFO )
-        self.logger.addHandler( self.handler )
+        self.logger.addHandler( HANDLER )
         self.logger.propagate = False
 
         counter: CountWarningHandler = CountWarningHandler()
diff --git a/geos-pv/src/geos/pv/plugins/post_processing/PVGeosLogReader.py b/geos-pv/src/geos/pv/plugins/post_processing/PVGeosLogReader.py
index 4b8aea9f..b46fd463 100644
--- a/geos-pv/src/geos/pv/plugins/post_processing/PVGeosLogReader.py
+++ b/geos-pv/src/geos/pv/plugins/post_processing/PVGeosLogReader.py
@@ -60,6 +60,7 @@
 
 """
 
+HANDLER: logging.Handler = VTKHandler()
 loggerTitle: str = "Geos Log Reader"
 
 
@@ -150,10 +151,9 @@ def __init__( self: Self ) -> None:
         for prop in propsSolvers:
             self.m_convergence.AddArray( prop )
 
-        self.handler: logging.Handler = VTKHandler()
         self.logger = logging.getLogger( loggerTitle )
         self.logger.setLevel( logging.INFO )
-        self.logger.addHandler( self.handler )
+        self.logger.addHandler( HANDLER )
         self.logger.propagate = False
 
         counter: CountWarningHandler = CountWarningHandler()
diff --git a/geos-pv/src/geos/pv/plugins/post_processing/PVMohrCirclePlot.py b/geos-pv/src/geos/pv/plugins/post_processing/PVMohrCirclePlot.py
index e3ff2585..625ac5c3 100644
--- a/geos-pv/src/geos/pv/plugins/post_processing/PVMohrCirclePlot.py
+++ b/geos-pv/src/geos/pv/plugins/post_processing/PVMohrCirclePlot.py
@@ -91,6 +91,7 @@
         * The attribute 'CellId' has to be used for the 'Selection Labels'.
 """
 
+HANDLER: logging.Handler = VTKHandler()
 loggerTitle: str = "Mohr Circle"
 
 
@@ -181,10 +182,9 @@ def __init__( self: Self ) -> None:
         # Request data processing step - incremented each time RequestUpdateExtent is called
         self.requestDataStep: int = -1
 
-        self.handler: logging.Handler = VTKHandler()
         self.logger = logging.getLogger( loggerTitle )
         self.logger.setLevel( logging.INFO )
-        self.logger.addHandler( self.handler )
+        self.logger.addHandler( HANDLER )
         self.logger.propagate = False
 
         counter: CountWarningHandler = CountWarningHandler()
diff --git a/geos-pv/src/geos/pv/plugins/post_processing/PVSurfaceGeomechanics.py b/geos-pv/src/geos/pv/plugins/post_processing/PVSurfaceGeomechanics.py
index 2cbc5ba2..f63c2b82 100644
--- a/geos-pv/src/geos/pv/plugins/post_processing/PVSurfaceGeomechanics.py
+++ b/geos-pv/src/geos/pv/plugins/post_processing/PVSurfaceGeomechanics.py
@@ -52,6 +52,7 @@
 
 """
 
+HANDLER: logging.Handler = VTKHandler()
 loggerTitle: str = "Surface Geomechanics"
 
 
@@ -70,10 +71,9 @@ def __init__( self: Self ) -> None:
         # friction angle (°)
         self.frictionAngle: float = DEFAULT_FRICTION_ANGLE_DEG
 
-        self.handler: logging.Handler = VTKHandler()
         self.logger = logging.getLogger( loggerTitle )
         self.logger.setLevel( logging.INFO )
-        self.logger.addHandler( self.handler )
+        self.logger.addHandler( HANDLER )
         self.logger.propagate = False
 
         counter: CountWarningHandler = CountWarningHandler()
@@ -148,8 +148,8 @@ def ApplyFilter( self: Self, inputMesh: vtkMultiBlockDataSet, outputMesh: vtkMul
             loggerName: str = f"Surface geomechanics for the blockIndex { blockIndex }"
             sgFilter: SurfaceGeomechanics = SurfaceGeomechanics( surfaceBlock, loggerName, True )
 
-            if not isHandlerInLogger( self.handler, sgFilter.logger ):
-                sgFilter.SetLoggerHandler( self.handler )
+            if not isHandlerInLogger( HANDLER, sgFilter.logger ):
+                sgFilter.SetLoggerHandler( HANDLER )
 
             sgFilter.SetRockCohesion( self._getRockCohesion() )
             sgFilter.SetFrictionAngle( self._getFrictionAngle() )
diff --git a/geos-pv/src/geos/pv/plugins/qc/PVCellTypeCounterEnhanced.py b/geos-pv/src/geos/pv/plugins/qc/PVCellTypeCounterEnhanced.py
index 44e99ced..c46c429a 100644
--- a/geos-pv/src/geos/pv/plugins/qc/PVCellTypeCounterEnhanced.py
+++ b/geos-pv/src/geos/pv/plugins/qc/PVCellTypeCounterEnhanced.py
@@ -41,6 +41,8 @@
 
 """
 
+HANDLER: logging.Handler = VTKHandler()
+
 
 @smproxy.filter( name="PVCellTypeCounterEnhanced", label="Cell Type Counter Enhanced" )
 @smhint.xml( f'<ShowInMenu category="{ FilterCategory.QC.value }"/>' )
@@ -60,8 +62,6 @@ def __init__( self: Self ) -> None:
         # used to concatenate results if vtkMultiBlockDataSet
         self._countsAll: CellTypeCounts = CellTypeCounts()
 
-        self.handler: logging.Handler = VTKHandler()
-
     @smproperty.intvector(
         name="SetSaveToFile",
         label="Save to file",
@@ -141,8 +141,8 @@ def RequestData(
         assert outputTable is not None, "Output pipeline is null."
 
         cellTypeCounterEnhancedFilter: CellTypeCounterEnhanced = CellTypeCounterEnhanced( inputMesh, True )
-        if not isHandlerInLogger( self.handler, cellTypeCounterEnhancedFilter.logger ):
-            cellTypeCounterEnhancedFilter.setLoggerHandler( self.handler )
+        if not isHandlerInLogger( HANDLER, cellTypeCounterEnhancedFilter.logger ):
+            cellTypeCounterEnhancedFilter.setLoggerHandler( HANDLER )
 
         try:
             cellTypeCounterEnhancedFilter.applyFilter()
diff --git a/geos-pv/src/geos/pv/plugins/qc/PVMeshQualityEnhanced.py b/geos-pv/src/geos/pv/plugins/qc/PVMeshQualityEnhanced.py
index d959b1e8..2c00aadc 100644
--- a/geos-pv/src/geos/pv/plugins/qc/PVMeshQualityEnhanced.py
+++ b/geos-pv/src/geos/pv/plugins/qc/PVMeshQualityEnhanced.py
@@ -58,6 +58,8 @@
     Please refer to the `Verdict Manual <https://visit-sphinx-github-user-manual.readthedocs.io/en/v3.4.0/_downloads/9d944264b44b411aeb4a867a1c9b1ed5/VerdictManual-revA.pdf>`_ for metrics and range definitions.
 """
 
+HANDLER: logging.Handler = VTKHandler()
+
 
 @SISOFilter( category=FilterCategory.QC, decoratedLabel="Mesh Quality Enhanced", decoratedType="vtkUnstructuredGrid" )
 class PVMeshQualityEnhanced( VTKPythonAlgorithmBase ):
@@ -68,8 +70,6 @@ def __init__( self: Self ) -> None:
         self._saveToFile: bool = True
         self._blockIndex: int = 0
 
-        self.handler: logging.Handler = VTKHandler()
-
         # Used to concatenate results if vtkMultiBlockDataSet
         self._metricsAll: list[ float ] = []
 
@@ -232,8 +232,8 @@ def ApplyFilter( self, inputMesh: vtkUnstructuredGrid, outputMesh: vtkUnstructur
         otherMetrics: set[ int ] = self._getQualityMetricsToUse( self._commonMeshQualityMetric )
 
         meshQualityEnhancedFilter: MeshQualityEnhanced = MeshQualityEnhanced( inputMesh, True )
-        if not isHandlerInLogger( self.handler, meshQualityEnhancedFilter.logger ):
-            meshQualityEnhancedFilter.setLoggerHandler( self.handler )
+        if not isHandlerInLogger( HANDLER, meshQualityEnhancedFilter.logger ):
+            meshQualityEnhancedFilter.setLoggerHandler( HANDLER )
 
         meshQualityEnhancedFilter.SetCellQualityMetrics( triangleMetrics=triangleMetrics,
                                                          quadMetrics=quadMetrics,
diff --git a/geos-pv/src/geos/pv/utils/workflowFunctions.py b/geos-pv/src/geos/pv/utils/workflowFunctions.py
index 1a66f1a7..88b6f6f8 100644
--- a/geos-pv/src/geos/pv/utils/workflowFunctions.py
+++ b/geos-pv/src/geos/pv/utils/workflowFunctions.py
@@ -9,8 +9,9 @@
 
 from vtkmodules.vtkCommonDataModel import vtkMultiBlockDataSet
 
-from paraview.detail.loghandler import ( VTKHandler )  # type: ignore[import-not-found]
+from paraview.detail.loghandler import VTKHandler  # type: ignore[import-not-found]
 
+HANDLER: logging.Handler = VTKHandler()
 
 def doExtractAndMerge(
     mesh: vtkMultiBlockDataSet,
@@ -37,9 +38,8 @@ def doExtractAndMerge(
                                                              extractFault=extractFault,
                                                              extractWell=extractWell,
                                                              speHandler=True )
-    handler: logging.Handler = VTKHandler()
-    if not isHandlerInLogger( handler, blockExtractor.logger ):
-        blockExtractor.setLoggerHandler( handler )
+    if not isHandlerInLogger( HANDLER, blockExtractor.logger ):
+        blockExtractor.setLoggerHandler( HANDLER )
 
     blockExtractor.applyFilter()
     # Add to the warning counter the number of warning logged with the call of GeosBlockExtractor filter
@@ -84,9 +84,8 @@ def mergeBlocksFilter(
     """
     loggerName = f"GEOS Block Merge for the domain { domainToMerge }"
     mergeBlockFilter: GeosBlockMerge = GeosBlockMerge( mesh, convertSurfaces, True, loggerName )
-    handler: logging.Handler = VTKHandler()
-    if not isHandlerInLogger( handler, mergeBlockFilter.logger ):
-        mergeBlockFilter.setLoggerHandler( handler )
+    if not isHandlerInLogger( HANDLER, mergeBlockFilter.logger ):
+        mergeBlockFilter.setLoggerHandler( HANDLER )
 
     mergeBlockFilter.applyFilter()
     # Add to the warning counter the number of warning logged with the call of GeosBlockMerge filter