diff --git a/pool.cpp b/pool.cpp
index c6d9d3e..ed6ff1d 100644
--- a/pool.cpp
+++ b/pool.cpp
@@ -3,15 +3,23 @@
 
 #include "pool.h"
 
+#include <fmt/core.h>
+
 namespace fortuna {
 namespace accumulator {
 
-auto Pool::set_id(unsigned int id) -> void {
-	pool_id = id;
+auto Pool::set_id(const unsigned int& id) noexcept -> void {
+	this->pool_id = id;
 }
 
-auto Pool::initialize_pool(unsigned int id) -> void {
+auto Pool::get_id() const noexcept -> unsigned int {
+	return this->pool_id;
+}
+
+auto Pool::initialize_pool(const unsigned int& id) -> void {
+	fmt::print("\tpool init: {}\n", id);
 	set_id(id);
+	fmt::print("\tid set to: {}\n", this->get_id());
 }
 
 auto Pool::add_entropy(const uint source, const std::vector<char>& event)
@@ -72,7 +80,7 @@ auto Pool::append_s(const std::string& entropy_s) -> void {
 		(this->s).append(std::string(entropy_s));
 	}
 	catch (const std::exception& e) {
-		fmt::print("{}", e.what());
+		fmt::print("{}\n", e.what());
 	}
 }
 
diff --git a/pool.h b/pool.h
index 7f46f78..96d7f55 100644
--- a/pool.h
+++ b/pool.h
@@ -3,8 +3,6 @@
 
 #include "util.h"
 
-#include <fmt/core.h>
-#include <stdexcept>
 
 namespace fortuna {
 namespace accumulator {
@@ -15,11 +13,11 @@ public:
 	Pool(const Pool& pool) = delete; // no copy
 	~Pool() noexcept = default;
 
-	auto set_id(unsigned int id) -> void;
+	auto set_id(const unsigned int& id) noexcept -> void;
 
-	auto get_id() const -> unsigned int;
+	auto get_id() const noexcept -> unsigned int;
 
-	auto initialize_pool(unsigned int id) -> void;
+	auto initialize_pool(const unsigned int& id) -> void;
 
 	// add entropy contained in a random event of 1 to 32 bytes
 	auto add_entropy(const uint source, const std::vector<char>& event) -> int;