diff --git a/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/Allclean b/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/Allclean
index d8e9677f46..9ded4bdec6 100755
--- a/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/Allclean
+++ b/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/Allclean
@@ -3,6 +3,7 @@ set -x
 
 # remove old cell sets
 rm -rf constant/polyMesh/sets
+foamClearPolyMesh
 
 # remove old time folders
 rm -rf 0 *[1-9]*
diff --git a/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/Allrun b/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/Allrun
index 8378f1f44b..701d55dc28 100755
--- a/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/Allrun
+++ b/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/Allrun
@@ -15,6 +15,7 @@ setSet -batch system/sets.setSet >& log.setSet1
 setsToZones -noFlipMap >& log.setsToZones
 
 # create the first cyclic - lhs of porous zone
+unset FOAM_SETNAN
 createBaffles cycLeft cycLeft -overwrite >& log.createBaffles1
 
 # create the second cyclic - rhs of porous zone
diff --git a/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/system/decomposeParDict b/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/system/decomposeParDict
index 152e9d0528..c8ec739687 100644
--- a/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/system/decomposeParDict
+++ b/tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/filter/system/decomposeParDict
@@ -19,7 +19,7 @@ numberOfSubdomains 4;
 
 method          metis;
 
-preservePatches
+preserveFaceZones
 (
     cycLeft
     cycRight
@@ -39,9 +39,7 @@ hierarchicalCoeffs
 }
 
 metisCoeffs
-{
-    processorWeights ( 1 1 1 1 );
-}
+{}
 
 manualCoeffs
 {