Index: firmware/App/Modes/PreTreatmentRecirc.c
===================================================================
diff -u -r3944e8bb0c4740c8d2109b3530b6814d9d8e4cfc -rcd5be724d5a3ba7457e761191d82f278654d7f5c
--- firmware/App/Modes/PreTreatmentRecirc.c	(.../PreTreatmentRecirc.c)	(revision 3944e8bb0c4740c8d2109b3530b6814d9d8e4cfc)
+++ firmware/App/Modes/PreTreatmentRecirc.c	(.../PreTreatmentRecirc.c)	(revision cd5be724d5a3ba7457e761191d82f278654d7f5c)
@@ -1,14 +1,14 @@
 /**************************************************************************
 *
-* Copyright (c) 2021-2023 Diality Inc. - All Rights Reserved.
+* Copyright (c) 2021-2024 Diality Inc. - All Rights Reserved.
 *
 * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
 * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
 *
 * @file    PreTreatmentRecirc.c
 *
 * @author  (last)      Michael Garthwaite
-* @date    (last)      16-May-2023
+* @date    (last)      09-Jun-2023
 *
 * @author  (original)  Quang Nguyen
 * @date    (original)  08-Feb-2021
@@ -68,7 +68,6 @@
     preTxRecircStartTime = getMSTimerCount();
     recircTOWarningGiven = FALSE;
     recircTOAlarmGiven = FALSE;
-    setCurrent4thLevelState( NO_SUB_STATE );
     resetPreTreatmentRecircFlags();
 }