Index: firmware/App/Controllers/PermeateTank.c
===================================================================
diff -u -re8a090df33223455312adc5ad494a3b5e2507f00 -rd79faa7118db6d048ce3433224b3e5a478c97a98
--- firmware/App/Controllers/PermeateTank.c	(.../PermeateTank.c)	(revision e8a090df33223455312adc5ad494a3b5e2507f00)
+++ firmware/App/Controllers/PermeateTank.c	(.../PermeateTank.c)	(revision d79faa7118db6d048ce3433224b3e5a478c97a98)
@@ -320,25 +320,25 @@
 
         case PERMEATE_TANK_FILL_STATE:
             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_OPEN );   // TODO - Change valves to handle RO rejection config
             setValveState( P34_VALV, VALVE_STATE_CLOSED ); // Current set to Medium recovery for alpha HW
             setValveState( P37_VALV, VALVE_STATE_CLOSED );
             setValveState( P39_VALV, VALVE_STATE_OPEN );
-            setValveState( P43_VALV, VALVE_STATE_CLOSED );
             tankFillDelayTime = getMSTimerCount();
             break;
 
         case PERMEATE_TANK_FULL_STATE:
             setValveState( M4_VALV, VALVE_STATE_CLOSED );
+            setValveState( M12_VALV, VALVE_STATE_CLOSED );
             setValveState( P6_VALV, VALVE_STATE_CLOSED );
             setValveState( P11_VALV, VALVE_STATE_OPEN );
             setValveState( P33_VALV, VALVE_STATE_OPEN );
             setValveState( P34_VALV, VALVE_STATE_OPEN );
             setValveState( P37_VALV, VALVE_STATE_CLOSED );
             setValveState( P39_VALV, VALVE_STATE_CLOSED );
-            setValveState( P43_VALV, VALVE_STATE_CLOSED );
             tankFullDelayTime = getMSTimerCount();
             tankFullAlarmTimeout = getMSTimerCount();
             break;
Index: firmware/App/Modes/FPModes/FPModeFault.c
===================================================================
diff -u -r6f961c6e113a4076ba9d5f97e078a398a8976d7c -rd79faa7118db6d048ce3433224b3e5a478c97a98
--- firmware/App/Modes/FPModes/FPModeFault.c	(.../FPModeFault.c)	(revision 6f961c6e113a4076ba9d5f97e078a398a8976d7c)
+++ firmware/App/Modes/FPModes/FPModeFault.c	(.../FPModeFault.c)	(revision d79faa7118db6d048ce3433224b3e5a478c97a98)
@@ -283,13 +283,13 @@
         if ( TRUE == isDrainEnabled )
         {
             setValveState( M4_VALV, VALVE_STATE_CLOSED );
+            setValveState( M12_VALV, VALVE_STATE_OPEN );
             setValveState( P6_VALV, VALVE_STATE_OPEN );
             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( P43_VALV, VALVE_STATE_CLOSED );
         }
         else
         {
Index: firmware/App/Modes/FPModes/FPModeStandby.c
===================================================================
diff -u -r6f961c6e113a4076ba9d5f97e078a398a8976d7c -rd79faa7118db6d048ce3433224b3e5a478c97a98
--- firmware/App/Modes/FPModes/FPModeStandby.c	(.../FPModeStandby.c)	(revision 6f961c6e113a4076ba9d5f97e078a398a8976d7c)
+++ firmware/App/Modes/FPModes/FPModeStandby.c	(.../FPModeStandby.c)	(revision d79faa7118db6d048ce3433224b3e5a478c97a98)
@@ -66,13 +66,13 @@
     initFPStandbyMode();
 
     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 );
 
     signalROPumpHardStop();
 
Index: firmware/App/Modes/FPModes/FlushConcentrate.c
===================================================================
diff -u -re8a090df33223455312adc5ad494a3b5e2507f00 -rd79faa7118db6d048ce3433224b3e5a478c97a98
--- firmware/App/Modes/FPModes/FlushConcentrate.c	(.../FlushConcentrate.c)	(revision e8a090df33223455312adc5ad494a3b5e2507f00)
+++ firmware/App/Modes/FPModes/FlushConcentrate.c	(.../FlushConcentrate.c)	(revision d79faa7118db6d048ce3433224b3e5a478c97a98)
@@ -203,13 +203,13 @@
     {
         case CONC_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() )
             {
@@ -225,13 +225,13 @@
             if ( FALSE == isConcentrateFlushComplete() )
             {
                 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() )
                 {
Index: firmware/App/Modes/FPModes/FlushFilter.c
===================================================================
diff -u -re8a090df33223455312adc5ad494a3b5e2507f00 -rd79faa7118db6d048ce3433224b3e5a478c97a98
--- firmware/App/Modes/FPModes/FlushFilter.c	(.../FlushFilter.c)	(revision e8a090df33223455312adc5ad494a3b5e2507f00)
+++ firmware/App/Modes/FPModes/FlushFilter.c	(.../FlushFilter.c)	(revision d79faa7118db6d048ce3433224b3e5a478c97a98)
@@ -191,13 +191,13 @@
     {
         case FILTER_FLUSH_IN_PROGRESS:
             setValveState( M4_VALV, VALVE_STATE_OPEN );
+            setValveState( M12_VALV, VALVE_STATE_OPEN );
             setValveState( P6_VALV, VALVE_STATE_OPEN );
             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_OPEN );
-            setValveState( P43_VALV, VALVE_STATE_CLOSED );
             filterFlushTimer = getMSTimerCount();
             break;
 
@@ -206,13 +206,13 @@
             if ( FALSE == isFilterFlushComplete() )
             {
                 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 );
             }
             break;
 
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() )
                 {
Index: firmware/App/Modes/FPModes/InletPressureCheck.c
===================================================================
diff -u -re8a090df33223455312adc5ad494a3b5e2507f00 -rd79faa7118db6d048ce3433224b3e5a478c97a98
--- firmware/App/Modes/FPModes/InletPressureCheck.c	(.../InletPressureCheck.c)	(revision e8a090df33223455312adc5ad494a3b5e2507f00)
+++ firmware/App/Modes/FPModes/InletPressureCheck.c	(.../InletPressureCheck.c)	(revision d79faa7118db6d048ce3433224b3e5a478c97a98)
@@ -200,13 +200,13 @@
     {
         case INLET_PRES_CHECK_IN_PROGRESS:
             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() )
             {
@@ -221,13 +221,13 @@
             if ( FALSE == isInletPressureCheckCompleted() )
             {
                 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() )
                 {
Index: firmware/App/Modes/FPModes/ModeGenPermeateDefeatured.c
===================================================================
diff -u -re8a090df33223455312adc5ad494a3b5e2507f00 -rd79faa7118db6d048ce3433224b3e5a478c97a98
--- firmware/App/Modes/FPModes/ModeGenPermeateDefeatured.c	(.../ModeGenPermeateDefeatured.c)	(revision e8a090df33223455312adc5ad494a3b5e2507f00)
+++ firmware/App/Modes/FPModes/ModeGenPermeateDefeatured.c	(.../ModeGenPermeateDefeatured.c)	(revision d79faa7118db6d048ce3433224b3e5a478c97a98)
@@ -140,24 +140,24 @@
     {
         case FP_GENP_DEF_SUPPLY_WATER:
             setValveState( M4_VALV, VALVE_STATE_OPEN );
+            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 );
             break;
 
         case FP_GENP_DEF_PAUSED:
             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 );
             break;
 
         default:
Index: firmware/App/Modes/FPModes/ModePreGenPermeate.c
===================================================================
diff -u -re8a090df33223455312adc5ad494a3b5e2507f00 -rd79faa7118db6d048ce3433224b3e5a478c97a98
--- firmware/App/Modes/FPModes/ModePreGenPermeate.c	(.../ModePreGenPermeate.c)	(revision e8a090df33223455312adc5ad494a3b5e2507f00)
+++ firmware/App/Modes/FPModes/ModePreGenPermeate.c	(.../ModePreGenPermeate.c)	(revision d79faa7118db6d048ce3433224b3e5a478c97a98)
@@ -187,13 +187,13 @@
 
         case FP_PRE_GENP_VERIFY_WATER:
             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_OPEN ); // TODO - Change valves to handle RO rejection config
             setValveState( P34_VALV, VALVE_STATE_CLOSED ); // Current set to Medium recovery for alpha HW
             setValveState( P37_VALV, VALVE_STATE_CLOSED );
             setValveState( P39_VALV, VALVE_STATE_OPEN );
-            setValveState( P43_VALV, VALVE_STATE_CLOSED );
 
             if ( TRUE == isBoostPumpInstalled() )
             {
Index: firmware/App/Modes/FPModes/ModePreGenPermeateDefeatured.c
===================================================================
diff -u -r5398b91c33e6fd39a74dbe132e50120965ef4107 -rd79faa7118db6d048ce3433224b3e5a478c97a98
--- firmware/App/Modes/FPModes/ModePreGenPermeateDefeatured.c	(.../ModePreGenPermeateDefeatured.c)	(revision 5398b91c33e6fd39a74dbe132e50120965ef4107)
+++ firmware/App/Modes/FPModes/ModePreGenPermeateDefeatured.c	(.../ModePreGenPermeateDefeatured.c)	(revision d79faa7118db6d048ce3433224b3e5a478c97a98)
@@ -151,37 +151,37 @@
     {
         case FP_PRE_GENP_DEF_FLUSH:
             setValveState( M4_VALV, VALVE_STATE_OPEN );
+            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 );
             preGenPermeateDefFlushTimer = getMSTimerCount();
             break;
 
         case FP_PRE_GENP_DEF_INLET_WATER_CHECK:
             setValveState( M4_VALV, VALVE_STATE_OPEN );
+            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 );
             preGenPermeateDefWaterCheckTimer = getMSTimerCount();
             break;
 
         case FP_PRE_GENP_DEF_PAUSED:
             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 );
             break;
 
         default: