diff --git a/geomagio/TimeseriesUtility.py b/geomagio/TimeseriesUtility.py
index aea308c52062148bfd7625e21fc8f78c3fb257a5..da7086d967b2e2c20c817b1381d204a1039dba80 100644
--- a/geomagio/TimeseriesUtility.py
+++ b/geomagio/TimeseriesUtility.py
@@ -195,36 +195,17 @@ def merge_streams(*streams):
         stream with contiguous traces merged, and gaps filled with numpy.nan
     """
     merged = obspy.core.Stream()
-    # masked_trace = None
-
     # add unmasked, split traces to be merged
     for stream in streams:
         merged += mask_stream(stream)
-
-    # if trace is completely masked separate out to be added back in later
-    # for trace in merged:
-    #     if trace.data.mask.all():
-    #         if not masked_trace:
-    #             masked_trace = trace
-    #         else:
-    #             masked_trace += trace
-
     # split traces that contain gaps
     merged = merged.split()
-
     # merge data
     merged.merge(
             # 1 = do not interpolate
             interpolation_samples=1,
             # 1 = when there is overlap, use data from trace with last endtime
             method=1)
-
-    # trim masked trace to the same size as other traces and add back to merged stream
-    # if masked_trace:
-    #     masked_trace.trim(merged[0].stats.starttime,merged[0].stats.endtime)
-    #     merged += masked_trace
-
-
     # convert back to NaN filled array
     merged = unmask_stream(merged)
     return merged