diff --git a/grid/alu3dgrid.hh b/grid/alu3dgrid.hh
index bde75b62b7ad518f507d7760118cebba7d80cfb5..33a19b9ac1042294b63f1f6714cea6b904b84394 100644
--- a/grid/alu3dgrid.hh
+++ b/grid/alu3dgrid.hh
@@ -1054,6 +1054,13 @@ namespace Dune
     //! maximal number of levels
     enum { MAXL = 64 };
 
+    //! normal default number of new elements for new adapt method
+    enum { newElementsChunk_ = 100 };
+
+    //! if one element is refined then it causes apporximately not more than
+    //! this number of new elements
+    enum { refineEstimate_ = 40 };
+
     //! Constructor which reads an ALU3dGrid Macro Triang file
     //! or given GridFile
 #ifdef _ALU3DGRID_PARALLEL_
@@ -1146,7 +1153,7 @@ namespace Dune
     bool adapt ( );
 
     template <class DofManagerType, class RestrictProlongOperatorType>
-    bool adapt (DofManagerType &, RestrictProlongOperatorType &);
+    bool adapt (DofManagerType &, RestrictProlongOperatorType &, bool verbose=false );
 
     //**********************************************************
     // End of Interface Methods