Index: firmware/App/Modes/FlushConcentrate.c
===================================================================
diff -u -r921198ed4c337cd5bcebbeedd7d724da4b1e23be -r337136fc77fe5628fa727aac6252a06238561a10
--- firmware/App/Modes/FlushConcentrate.c	(.../FlushConcentrate.c)	(revision 921198ed4c337cd5bcebbeedd7d724da4b1e23be)
+++ firmware/App/Modes/FlushConcentrate.c	(.../FlushConcentrate.c)	(revision 337136fc77fe5628fa727aac6252a06238561a10)
@@ -204,12 +204,15 @@
     {
         case CONC_FLUSH_IN_PROGRESS:
             setValveState( M4_VALV, VALVE_STATE_OPEN );
+            setValveState( M7_VALV, VALVE_STATE_CLOSED );
             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_OPEN );
             setValveState( P39_VALV, VALVE_STATE_OPEN );
+            setValveState( P20_VALV, VALVE_STATE_CLOSED );
+            setValveState( P43_VALV, VALVE_STATE_CLOSED );
 
             if ( TRUE == isBoostPumpInstalled() )
             {
@@ -226,12 +229,15 @@
             if ( FALSE == isConcentrateFlushComplete() )
             {
                 setValveState( M4_VALV, VALVE_STATE_CLOSED );
+                setValveState( M7_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( P20_VALV, VALVE_STATE_CLOSED );
+                setValveState( P43_VALV, VALVE_STATE_CLOSED );
 
                 if ( TRUE == isBoostPumpInstalled() )
                 {