Index: firmware/App/Modes/SampleWater.c
===================================================================
diff -u -r27a68f930508638f2eb6265ebb381c8918cbc37b -r1f91b5a53bda942b0967817bbd5e68a499dbf816
--- firmware/App/Modes/SampleWater.c	(.../SampleWater.c)	(revision 27a68f930508638f2eb6265ebb381c8918cbc37b)
+++ firmware/App/Modes/SampleWater.c	(.../SampleWater.c)	(revision 1f91b5a53bda942b0967817bbd5e68a499dbf816)
@@ -1,14 +1,14 @@
 /**************************************************************************
 *
-* Copyright (c) 2021-2022 Diality Inc. - All Rights Reserved.
+* Copyright (c) 2021-2023 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    SampleWater.c
 *
-* @author  (last)      Darren Cox
-* @date    (last)      10-Mar-2022
+* @author  (last)      Michael Garthwaite
+* @date    (last)      19-Jan-2023
 *
 * @author  (original)  Quang Nguyen
 * @date    (original)  19-Feb-2021
@@ -87,6 +87,8 @@
 *************************************************************************/
 void execSampleWater( void )
 {
+    SAMPLE_WATER_STATE_T priorSubState = currentSampleWaterState;
+
 #ifndef _RELEASE_
     if ( SW_CONFIG_ENABLE_VALUE == getSoftwareConfigStatus( SW_CONFIG_DISABLE_SAMPLE_WATER ) )
     {
@@ -113,6 +115,11 @@
                 break;
         }
     }
+
+    if ( priorSubState != currentSampleWaterState )
+    {
+        SEND_EVENT_WITH_2_U32_DATA( HD_EVENT_SUB_STATE_CHANGE, priorSubState, currentSampleWaterState );
+    }
 }
 
 /*********************************************************************//**