Index: firmware/App/Modes/FPModes/ModePreGenPermeateDefeatured.c
===================================================================
diff -u -r3417933e6edf61a914c428e2fa944b3b349272a4 -r39405d73782b8b9cf1fc26238640e683efcebbb5
--- firmware/App/Modes/FPModes/ModePreGenPermeateDefeatured.c	(.../ModePreGenPermeateDefeatured.c)	(revision 3417933e6edf61a914c428e2fa944b3b349272a4)
+++ firmware/App/Modes/FPModes/ModePreGenPermeateDefeatured.c	(.../ModePreGenPermeateDefeatured.c)	(revision 39405d73782b8b9cf1fc26238640e683efcebbb5)
@@ -151,7 +151,7 @@
     {
         case FP_PRE_GENP_DEF_FLUSH:
             setValveState( M4_VALV, VALVE_STATE_OPEN );
-            setValveState( M12_VALV, VALVE_STATE_CLOSED );
+            setValveState( M12_VALV, VALVE_STATE_OPEN );
             setValveState( P6_VALV, VALVE_STATE_CLOSED );
             setValveState( P11_VALV, VALVE_STATE_CLOSED );
             setValveState( P33_VALV, VALVE_STATE_CLOSED );