diff --git a/phreeqcpp/Phreeqc.h b/phreeqcpp/Phreeqc.h
index e1a30274..a77f5ee5 100644
--- a/phreeqcpp/Phreeqc.h
+++ b/phreeqcpp/Phreeqc.h
@@ -499,8 +499,8 @@ public:
 
 	// pitzer.cpp -------------------------------
 	class pitz_param* pitz_param_read(char* string, int n);
-	void pitz_param_store(const class pitz_param* pzp_ptr);
-	void sit_param_store(const class pitz_param* pzp_ptr);
+	void pitz_param_store(class pitz_param* pzp_ptr);
+	void sit_param_store(class pitz_param* pzp_ptr);
 	class pitz_param* pitz_param_copy(const class pitz_param* src);
 	class theta_param* theta_param_search(LDBLE zj, LDBLE zk);
 	void pitzer_make_lists(void);
diff --git a/phreeqcpp/class_main.cpp b/phreeqcpp/class_main.cpp
index 7fc4b8b7..16084f78 100644
--- a/phreeqcpp/class_main.cpp
+++ b/phreeqcpp/class_main.cpp
@@ -23,6 +23,7 @@ main(int argc, char *argv[])
 
   // check for floating point exceptions on Linux
   // feenableexcept(FE_DIVBYZERO|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW);
+//#define WIN32_MEMORY_DEBUG
 #if defined(WIN32_MEMORY_DEBUG)
 	int tmpDbgFlag;
 
diff --git a/phreeqcpp/pitzer_structures.cpp b/phreeqcpp/pitzer_structures.cpp
index 141ca49f..6a5c6f30 100644
--- a/phreeqcpp/pitzer_structures.cpp
+++ b/phreeqcpp/pitzer_structures.cpp
@@ -66,7 +66,7 @@ pitz_param_read(char *string, int n)
 }
 /* ---------------------------------------------------------------------- */
 void Phreeqc::
-pitz_param_store(const class pitz_param *pzp_ptr)
+pitz_param_store(class pitz_param *pzp_ptr)
 /* ---------------------------------------------------------------------- */
 {
 /*
@@ -78,7 +78,6 @@ pitz_param_store(const class pitz_param *pzp_ptr)
 		return;
 	if (pzp_ptr->type == TYPE_Other)
 		return;
-	class pitz_param* dest = pitz_param_copy(pzp_ptr);
 	std::set< std::string > header;
 	for (i = 0; i < 3; i++)
 	{
@@ -108,20 +107,20 @@ pitz_param_store(const class pitz_param *pzp_ptr)
 		}
 	    warning_msg(error_string);
 		delete pitz_params[(*jit).second]; 
-		pitz_params[(*jit).second] = dest;
+		pitz_params[(*jit).second] = pzp_ptr;
 	}
 	else
 	{
 		size_t count_pitz_param = pitz_params.size();
 		pitz_params.resize(count_pitz_param + 1);
-		pitz_params[count_pitz_param] = pitz_param_copy(pzp_ptr);
+		pitz_params[count_pitz_param] = pzp_ptr;
 		pitz_param_map[key] = count_pitz_param;
 	}
 }
 
 /* ---------------------------------------------------------------------- */
 void Phreeqc::
-sit_param_store(const class pitz_param *pzp_ptr)
+sit_param_store(class pitz_param *pzp_ptr)
 /* ---------------------------------------------------------------------- */
 {
 /*
@@ -133,7 +132,6 @@ sit_param_store(const class pitz_param *pzp_ptr)
 		return;
 	if (pzp_ptr->type == TYPE_Other)
 		return;
-	class pitz_param* dest = pitz_param_copy(pzp_ptr);
 
 	std::set< std::string > header;
 	for (i = 0; i < 3; i++)
@@ -165,13 +163,13 @@ sit_param_store(const class pitz_param *pzp_ptr)
 		}
 	    warning_msg(error_string);
 		delete sit_params[(*jit).second]; 
-		sit_params[(*jit).second] = dest;
+		sit_params[(*jit).second] = pzp_ptr;
 	}
 	else
 	{
 		size_t count_sit_param = sit_params.size();
 		sit_params.resize(count_sit_param + 1);
-		sit_params[count_sit_param] = dest;
+		sit_params[count_sit_param] = pzp_ptr;
 		sit_param_map[key] = count_sit_param;
 	}
 }
diff --git a/phreeqcpp/structures.cpp b/phreeqcpp/structures.cpp
index 78b88c25..61bfbe29 100644
--- a/phreeqcpp/structures.cpp
+++ b/phreeqcpp/structures.cpp
@@ -146,6 +146,7 @@ clean_up(void)
 	/*  user_print and user_punch */
 	UserPunch_map.clear();
 	rate_free(user_print);
+	delete user_print;
 	/*
 	   Clear llnl aqueous model parameters
 	 */