Index: firmware/App/Modes/FPModes/FlushPermeate.c
===================================================================
diff -u -re8a090df33223455312adc5ad494a3b5e2507f00 -rd79faa7118db6d048ce3433224b3e5a478c97a98
--- firmware/App/Modes/FPModes/FlushPermeate.c	(.../FlushPermeate.c)	(revision e8a090df33223455312adc5ad494a3b5e2507f00)
+++ firmware/App/Modes/FPModes/FlushPermeate.c	(.../FlushPermeate.c)	(revision d79faa7118db6d048ce3433224b3e5a478c97a98)
@@ -208,13 +208,13 @@
     {
         case PERM_FLUSH_IN_PROGRESS:
             setValveState( M4_VALV, VALVE_STATE_OPEN );
+            setValveState( M12_VALV, VALVE_STATE_OPEN );
             setValveState( P6_VALV, VALVE_STATE_CLOSED );
             setValveState( P11_VALV, VALVE_STATE_OPEN );
             setValveState( P33_VALV, VALVE_STATE_CLOSED );
             setValveState( P34_VALV, VALVE_STATE_CLOSED );
             setValveState( P37_VALV, VALVE_STATE_CLOSED );
             setValveState( P39_VALV, VALVE_STATE_OPEN );
-            setValveState( P43_VALV, VALVE_STATE_CLOSED );
             startPermeateTankControl();
             if ( TRUE == isBoostPumpInstalled() )
             {
@@ -232,13 +232,13 @@
             if ( FALSE == isPermeateFlushComplete() )
             {
                 setValveState( M4_VALV, VALVE_STATE_CLOSED );
+                setValveState( M12_VALV, VALVE_STATE_CLOSED );
                 setValveState( P6_VALV, VALVE_STATE_CLOSED );
                 setValveState( P11_VALV, VALVE_STATE_CLOSED );
                 setValveState( P33_VALV, VALVE_STATE_CLOSED );
                 setValveState( P34_VALV, VALVE_STATE_CLOSED );
                 setValveState( P37_VALV, VALVE_STATE_CLOSED );
                 setValveState( P39_VALV, VALVE_STATE_CLOSED );
-                setValveState( P43_VALV, VALVE_STATE_CLOSED );
 
                 if ( TRUE == isBoostPumpInstalled() )
                 {