Index: leahi_dialin/common/dd_defs.py
===================================================================
diff -u -rc5bfcf84ed942ca5841bf9de155aa0f495b4d28d -r396e5d3fdfdcdabca9cc7434de0fcee52036aaa1
--- leahi_dialin/common/dd_defs.py	(.../dd_defs.py)	(revision c5bfcf84ed942ca5841bf9de155aa0f495b4d28d)
+++ leahi_dialin/common/dd_defs.py	(.../dd_defs.py)	(revision 396e5d3fdfdcdabca9cc7434de0fcee52036aaa1)
@@ -488,7 +488,7 @@
             'D3_VALV': 12,                                              # Valve Hydraulics Inlet (D3)
             'D80_VALV': 13,                                             # Valve Dry Bicarb (D80)
             'D81_VALV': 14,                                             # Valve De-scaler (D81)
-            'RSRVD_SPACE1': 15,                                         # This space has been reserved
+            'D85_VALV': 15,                                             # Valve De-scaler (D85)
             'D23_VALV': 16,                                             # Balancing chamber Valve 1 (D23)
             'D19_VALV': 17,                                             # Balancing chamber Valve 2 (D19)
             'D25_VALV': 18,                                             # Balancing chamber Valve 3 (D25)
Index: leahi_dialin/dd/modules/valves.py
===================================================================
diff -u -rc5bfcf84ed942ca5841bf9de155aa0f495b4d28d -r396e5d3fdfdcdabca9cc7434de0fcee52036aaa1
--- leahi_dialin/dd/modules/valves.py	(.../valves.py)	(revision c5bfcf84ed942ca5841bf9de155aa0f495b4d28d)
+++ leahi_dialin/dd/modules/valves.py	(.../valves.py)	(revision 396e5d3fdfdcdabca9cc7434de0fcee52036aaa1)
@@ -78,7 +78,7 @@
         self.d3_valv = {"id": dd_enum_repository.DDValveNames.D3_VALV.value, "state": DEENERGIZED}
         self.d80_valv = {"id": dd_enum_repository.DDValveNames.D80_VALV.value, "state": DEENERGIZED}
         self.d81_valv = {"id": dd_enum_repository.DDValveNames.D81_VALV.value, "state": DEENERGIZED}
-        self.rsvrd1 = {"id": dd_enum_repository.DDValveNames.RSRVD_SPACE1.value, "state": DEENERGIZED}
+        self.d85_valv = {"id": dd_enum_repository.DDValveNames.D85_VALV.value, "state": DEENERGIZED}
 
         self.d23_valv = {"id": dd_enum_repository.DDValveNames.D23_VALV.value, "state": DEENERGIZED}
         self.d19_valv = {"id": dd_enum_repository.DDValveNames.D19_VALV.value, "state": DEENERGIZED}
@@ -128,7 +128,7 @@
             self.d3_valv.get("state", None),
             self.d80_valv.get("state", None),
             self.d81_valv.get("state", None),
-            self.rsvrd1.get("state", None),
+            self.d85_valv.get("state", None),
 
             self.d23_valv.get("state", None),
             self.d19_valv.get("state", None),
@@ -197,7 +197,7 @@
         "d3_valv",
         "d80_valv",
         "d81_valv",
-        "rsvrd1",
+        "d85_valv",
         "d23_valv",
         "d19_valv",
         "d25_valv",
@@ -245,7 +245,7 @@
         self.d3_valv["state"] = self._binary_to_valve_state(vst[0] & 4096)
         self.d80_valv["state"] = self._binary_to_valve_state(vst[0] & 8192)
         self.d81_valv["state"] = self._binary_to_valve_state(vst[0] & 16384)
-        self.rsvrd1["state"] = self._binary_to_valve_state(vst[0] & 32768)
+        self.d85_valv["state"] = self._binary_to_valve_state(vst[0] & 32768)
 
         bcv = struct.unpack('B', bytearray(message['message'][self.START_POS_BCV_VALVES_STATES:self.END_POS_BCV_VALVES_STATES]))
         self.d23_valv["state"] = self._binary_to_valve_state(bcv[0] & 1)