Index: firmware/App/Modes/ModeFlush.c
===================================================================
diff -u -r1747702a2e89998cd3fa1348907eeb623e9c16c8 -r4e1a668cc3df17b7268d5b4379905fc67342a0a3
--- firmware/App/Modes/ModeFlush.c	(.../ModeFlush.c)	(revision 1747702a2e89998cd3fa1348907eeb623e9c16c8)
+++ firmware/App/Modes/ModeFlush.c	(.../ModeFlush.c)	(revision 4e1a668cc3df17b7268d5b4379905fc67342a0a3)
@@ -663,6 +663,10 @@
             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;