Index: firmware/App/Modes/ModeFlush.c
===================================================================
diff -u -re22395bf25ff47449fd42c4ed653369b07eaa885 -r7ac8aaa3e568baad898955ed0235e1ccac23775a
--- firmware/App/Modes/ModeFlush.c	(.../ModeFlush.c)	(revision e22395bf25ff47449fd42c4ed653369b07eaa885)
+++ firmware/App/Modes/ModeFlush.c	(.../ModeFlush.c)	(revision 7ac8aaa3e568baad898955ed0235e1ccac23775a)
@@ -661,6 +661,10 @@
             turnOffUVReactor( INLET_UV_REACTOR );
             turnOffUVReactor( OUTLET_UV_REACTOR );
 
+            // Close VPi and VPd to drain
+            setValveState(VPI, VALVE_STATE_CLOSED);
+            setValveState(VPD, VALVE_STATE_DRAIN_C_TO_NO);
+
             stateTimerStart = getMSTimerCount();
             isThisInitialDrain = FALSE;
             rsrvr1Status = DG_RESERVOIR_ABOVE_TARGET;