diff --git a/utilities/postprocessPhasicFlow/ProcessField.hpp b/utilities/postprocessPhasicFlow/ProcessField.hpp
index 33619111..01841ebc 100644
--- a/utilities/postprocessPhasicFlow/ProcessField.hpp
+++ b/utilities/postprocessPhasicFlow/ProcessField.hpp
@@ -49,7 +49,6 @@ public:
 
 	TypeInfoTemplate11("ProcessField", T);
 
-
 	ProcessField(
 		const dictionary& dict,
 		pointRectCell& pToCell,
diff --git a/utilities/postprocessPhasicFlow/fieldOperations.hpp b/utilities/postprocessPhasicFlow/fieldOperations.hpp
index 92647561..80eb82f8 100644
--- a/utilities/postprocessPhasicFlow/fieldOperations.hpp
+++ b/utilities/postprocessPhasicFlow/fieldOperations.hpp
@@ -46,9 +46,9 @@ uniquePtr<rectMeshField_H<T>> sumOp( pointField_H<T>& field, pointRectCell& poin
 		{
 			for(int32 k=0; k<mesh.nz(); k++)
 			{
-				auto n = iterator.start(i,j,k);	
+				uint32 n = iterator.start(i,j,k);	
 				T res (0);
-				while(n>-1)
+				while(n != cellMapper::NoPos)
 				{
 					res += f[n];
 					n = iterator.getNext(n);
@@ -80,10 +80,10 @@ uniquePtr<rectMeshField_H<T>> sumMaksOp( pointField_H<T>& field, pointRectCell&
 			for(int32 k=0; k<mesh.nz(); k++)
 			{
 				//auto [loop, n] = pointToCell.startLoop(i,j,k);
-				auto n = iterator.start(i,j,k);	
+				uint32 n = iterator.start(i,j,k);	
 				T res (0);
 				
-				while(n>-1)
+				while(n!= cellMapper::NoPos)
 				{
 					
 					if(mask(n))
diff --git a/utilities/postprocessPhasicFlow/pointRectCell.hpp b/utilities/postprocessPhasicFlow/pointRectCell.hpp
index 7916fb4c..764cab4a 100644
--- a/utilities/postprocessPhasicFlow/pointRectCell.hpp
+++ b/utilities/postprocessPhasicFlow/pointRectCell.hpp
@@ -101,7 +101,6 @@ public:
 		map_.build(points, activeMask);
 		
 		auto iterator = map_.getCellIterator();
-		
 	
 		for(int32 i=0; i<mesh_.nx(); i++)
 		{
@@ -111,8 +110,8 @@ public:
 				{
 
 					int32 res = 0;
-					int32 n = iterator.start(i,j,k);
-					while( n>-1)
+					uint32 n = iterator.start(i,j,k);
+					while( n!= cellMapper::NoPos)
 					{
 						res+=1;
 						n = iterator.getNext(n);
diff --git a/utilities/postprocessPhasicFlow/processField.cpp b/utilities/postprocessPhasicFlow/processField.cpp
index b01840a9..d06f71a0 100644
--- a/utilities/postprocessPhasicFlow/processField.cpp
+++ b/utilities/postprocessPhasicFlow/processField.cpp
@@ -35,7 +35,7 @@ pFlow::processField::processField(
 	processedFieldName_(dict.name()),
 	operation_(dict.getVal<word>("operation")),
 	includeMaskType_(dict.getVal<word>("includeMask")),
-	threshold_(dict.getValOrSet<int32>("threshold", 1))
+	threshold_(dict.getValOrSetMax<int32>("threshold", 1))
 {
 	
 	if(!processField::getFieldType(
@@ -50,8 +50,7 @@ pFlow::processField::processField(
 	auto& incDict = dict_.subDictOrCreate(includeMaskType_+"Info");
 	
 	includeMask_ = includeMask::create(incDict, includeMaskType_, timeFolder_);
-	
-	
+
 }
 
 bool pFlow::processField::getFieldType(