Index: firmware/App/Modes/ModeStandby.c
===================================================================
diff -u -r0c296cef29037819be204c45a23d4d38a52b2718 -rce0cc9ae34163a333f8b9d4eb884be27aa5e7205
--- firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision 0c296cef29037819be204c45a23d4d38a52b2718)
+++ firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision ce0cc9ae34163a333f8b9d4eb884be27aa5e7205)
@@ -309,6 +309,7 @@
     {
         stopSampleWaterRequest = FALSE;
         setValveState( VSP, VALVE_STATE_CLOSED );
+        setValveState( VPI, VALVE_STATE_CLOSED );
         state = DG_STANDBY_MODE_STATE_FLUSH_FILTER_IDLE;
     }