diff --git a/config/cmip6.yaml b/config/cmip6.yaml
index 5af7bd5..0ea165d 100644
--- a/config/cmip6.yaml
+++ b/config/cmip6.yaml
@@ -10,8 +10,4 @@ sources:
     
   - metadata_yaml: /g/data/xp65/admin/access-nri-intake-catalog/config/metadata_sources/cmip6-oi10/metadata.yaml
     path:
-      - /g/data/oi10/catalog/v2/esm/catalog.json
-
-  - metadata_yaml: /g/data/xp65/admin/intake/metadata/cmip6_ig45/metadata.yaml
-    path:
-    - /g/data/ig45/catalog/v2/esm/catalog.json 
\ No newline at end of file
+      - /g/data/oi10/catalog/v2/esm/catalog.json
\ No newline at end of file
diff --git a/config/experiments/cmip6_ig45/metadata.yaml b/config/experiments/cmip6_ig45/metadata.yaml
deleted file mode 100644
index 8046f73..0000000
--- a/config/experiments/cmip6_ig45/metadata.yaml
+++ /dev/null
@@ -1,26 +0,0 @@
-name: cmip6_ig45
-experiment_uuid: c7021d1e-7ba2-11ef-beb5-000007d3fe80
-description: 20km regional projections for CORDEX-CMIP6 from the Queensland Future Climate Science Program
-long_description: >-
-  This dataset includes projections at 20km, formatted to meet the CORDEX-CMIP6 data standards. 
-  The 20km projections were derived from the 10km projections.
-model:
-- CMIP6
-frequency:
-- 
-variable:
-- 
-nominal_resolution:
-- 
-version: 
-contact: NCI
-email: help@nci.org.au
-reference:
-license:
-url: https://geonetwork.nci.org.au/geonetwork/srv/eng/catalog.search#/metadata/f7465_8388_5100_7022
-parent_experiment:
-related_experiments:
--
-notes: 
-keywords:
-- cmip
\ No newline at end of file
diff --git a/config/metadata_sources/cordex-ig45/metadata.yaml b/config/metadata_sources/cordex-ig45/metadata.yaml
index c118c40..1d013e6 100644
--- a/config/metadata_sources/cordex-ig45/metadata.yaml
+++ b/config/metadata_sources/cordex-ig45/metadata.yaml
@@ -121,7 +121,6 @@ license:
 url: https://geonetwork.nci.org.au/geonetwork/srv/eng/catalog.search#/metadata/f7465_8388_5100_7022
 parent_experiment:
 related_experiments:
--
 notes: 
 keywords:
 - cmip
\ No newline at end of file
diff --git a/src/access_nri_intake/catalog/translators.py b/src/access_nri_intake/catalog/translators.py
index e547296..fb8fb5a 100644
--- a/src/access_nri_intake/catalog/translators.py
+++ b/src/access_nri_intake/catalog/translators.py
@@ -211,8 +211,8 @@ def set_dispatch(
             The function to translate the column
         """
         if core_colname not in ["model", "realm", "frequency", "variable"]:
-            raise ValueError(
-                "'flag' must be one of 'model', 'realm', 'frequency', 'variable'"
+            raise TranslatorError(
+                f"'core_colname' must be one of 'model', 'realm', 'frequency', 'variable', not {core_colname}"
             )
         self._dispatch[core_colname] = func
         setattr(self._dispatch_keys, core_colname, input_name)
diff --git a/tests/test_translators.py b/tests/test_translators.py
index 29b422b..91ee588 100644
--- a/tests/test_translators.py
+++ b/tests/test_translators.py
@@ -17,6 +17,7 @@
     TranslatorError,
     _cmip_realm_translator,
     _to_tuple,
+    tuplify_series,
 )
 
 
@@ -189,6 +190,29 @@ def test_DefaultTranslator_error(test_data):
     assert "Could not translate" in str(excinfo.value)
 
 
+@pytest.mark.parametrize(
+    "colname, should_raise",
+    [
+        ("model", False),
+        ("realm", False),
+        ("frequency", False),
+        ("variable", False),
+        ("random_string", True),
+    ],
+)
+def test_DefaultTranslator_set_dispatch(test_data, colname, should_raise):
+    """Test that only valid translation setups are allowed"""
+    esmds = intake.open_esm_datastore(test_data / "esm_datastore/cmip5-al33.json")
+    dtrans = DefaultTranslator(esmds, CORE_COLUMNS)
+    if should_raise:
+        with pytest.raises(TranslatorError) as excinfo:
+            dtrans.set_dispatch(colname, dtrans._model_translator, "model")
+            assert "'core_colname' must be one of" in str(excinfo.value)
+    else:
+        dtrans.set_dispatch(colname, dtrans._model_translator, colname)
+        assert dtrans._dispatch[colname] == dtrans._model_translator
+
+
 @pytest.mark.parametrize(
     "groupby, n_entries",
     [
@@ -280,3 +304,26 @@ def test_CordexTranslator(test_data, groupby, n_entries):
     esmds.description = "description"
     df = CordexTranslator(esmds, CORE_COLUMNS).translate(groupby)
     assert len(df) == n_entries
+
+
+@pytest.mark.parametrize(
+    "input_series, expected_output",
+    [
+        (pd.Series([1, 2, 3]), pd.Series([(1,), (2,), (3,)])),
+        (pd.Series([(1,), 2, 3]), pd.Series([(1,), (2,), (3,)])),
+    ],
+)
+def test_tuplify_series(input_series, expected_output):
+    """Test the _tuplify_series function"""
+
+    @tuplify_series
+    def tuplify_func(series):
+        return series
+
+    class TestSeries:
+        @tuplify_series
+        def method(self, series):
+            return series
+
+    assert all(tuplify_func(input_series) == expected_output)
+    assert all(TestSeries().method(input_series) == expected_output)