Index: firmware/App/Modes/ModeStandby.c
===================================================================
diff -u -rdaf4763d6f40baf4cbc2f9d88aba7d9faf588ad6 -rd32847d87534b3273deb7362f598aba60877e7b8
--- firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision daf4763d6f40baf4cbc2f9d88aba7d9faf588ad6)
+++ firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision d32847d87534b3273deb7362f598aba60877e7b8)
@@ -7,8 +7,8 @@
 *
 * @file    ModeStandby.c
 *
-* @author  (last)      Dara Navaei
-* @date    (last)      27-Sep-2022
+* @author  (last)      Bill Bracken
+* @date    (last)      30-Nov-2022
 *
 * @author  (original)  Dara Navaei
 * @date    (original)  05-Nov-2019
@@ -312,6 +312,7 @@
     {
         stopSampleWaterRequest = FALSE;
         setValveState( VSP, VALVE_STATE_CLOSED );
+        setValveState( VPI, VALVE_STATE_CLOSED );
         state = DG_STANDBY_MODE_STATE_FLUSH_FILTER_IDLE;
     }