Index: firmware/App/Modes/ModeDrain.c
===================================================================
diff -u -rebbb1f85550a1f9b8f946655f7b2b63f76fbf67d -r847478dd75aac2edfe27df454ac5a644b6f30040
--- firmware/App/Modes/ModeDrain.c	(.../ModeDrain.c)	(revision ebbb1f85550a1f9b8f946655f7b2b63f76fbf67d)
+++ firmware/App/Modes/ModeDrain.c	(.../ModeDrain.c)	(revision 847478dd75aac2edfe27df454ac5a644b6f30040)
@@ -71,6 +71,18 @@
     // re-initialize each time we transition to drain mode
     initDrainMode();
 
+#ifndef V_2_SYSTEM
+    DG_RESERVOIR_ID_T inactiveReservoir = getInactiveReservoir();
+
+    if ( DG_RESERVOIR_1 == inactiveReservoir )
+    {
+        setValveState( VRD1, VALVE_STATE_OPEN );
+    }
+    else if ( DG_RESERVOIR_2 == inactiveReservoir )
+    {
+        setValveState( VRD2, VALVE_STATE_OPEN );
+    }
+#endif
     // set initial actuator states
     setValveState( VDR, VALVE_STATE_DRAIN_C_TO_NO );
     setDrainPumpTargetRPM( TARGET_DRAIN_PUMP_RPM );
@@ -129,6 +141,17 @@
     {
         setDrainPumpTargetRPM( 0 );
         requestNewOperationMode( DG_MODE_CIRC );
+
+#ifndef V_2_SYSTEM
+        if ( DG_RESERVOIR_1 == inactiveReservoir )
+        {
+            setValveState( VRD1, VALVE_STATE_CLOSED );
+        }
+        else if ( DG_RESERVOIR_2 == inactiveReservoir )
+        {
+            setValveState( VRD2, VALVE_STATE_CLOSED );
+        }
+#endif
     }
 
     return result;