diff --git a/two_phase/flow_utils.py b/two_phase/flow_utils.py
index 18d7529..7e88277 100644
--- a/two_phase/flow_utils.py
+++ b/two_phase/flow_utils.py
@@ -1,6 +1,6 @@
 import CoolProp.CoolProp as cp
 import numpy as np
-from .utils import iterable
+# from .utils import iterable # UNUSED
 
 
 class Properties(object):