Index: firmware/App/Modes/Rinseback.c
===================================================================
diff -u -rb20421d84b9049977c04f4752f4fc5697425f25c -raae7692fd100c173832c35786d060d2ad9aecf0d
--- firmware/App/Modes/Rinseback.c	(.../Rinseback.c)	(revision b20421d84b9049977c04f4752f4fc5697425f25c)
+++ firmware/App/Modes/Rinseback.c	(.../Rinseback.c)	(revision aae7692fd100c173832c35786d060d2ad9aecf0d)
@@ -993,8 +993,10 @@
     if ( ++rinsebackPublishTimerCtr >= getPublishRinsebackInterval() )
     {
         RINSEBACK_DATA_PAYLOAD_T data;
+        TREATMENT_STOP_PAYLOAD_T sdata;
         U32 timeout = MAX_RINSEBACK_TIME  / ( MS_PER_SECOND / TASK_GENERAL_INTERVAL );
         U32 countdown = ( getRinsebackVolume() >= rinsebackTargetVolume_mL ? MAX_RINSEBACK_DONE_TIME : MAX_RINSEBACK_TIME );
+        U32 stopTO = ( getRinsebackVolume() >= rinsebackTargetVolume_mL ? 0 : MAX_RINSEBACK_TIME );
 
         countdown -= rinsebackTimerCtr;
         // Handle countdown past zero
@@ -1026,6 +1028,19 @@
             data.isCompleted = TRUE;
         }
         broadcastData( MSG_ID_HD_RINSEBACK_PROGRESS, COMM_BUFFER_OUT_CAN_HD_BROADCAST, (U08*)&data, sizeof( RINSEBACK_DATA_PAYLOAD_T ) );
+
+        // Send blood sitting count down to UI for alarm dialog
+        sdata.timeout   = stopTO / ( MS_PER_SECOND / TASK_GENERAL_INTERVAL );
+        sdata.countdown = 0;
+
+        if ( getRinsebackCompleted() != TRUE )
+        {
+            if ( rinsebackTimerCtr > 0 )
+            {
+                sdata.countdown = ( rinsebackTimerCtr > MAX_TIME_BLOOD_SITTING ? 0 : ( MAX_TIME_BLOOD_SITTING - rinsebackTimerCtr ) / ( MS_PER_SECOND / TASK_GENERAL_INTERVAL ) );
+            }
+        }
+        broadcastData( MSG_ID_HD_TREATMENT_STOP_TIMER_DATA, COMM_BUFFER_OUT_CAN_HD_BROADCAST, (U08*)&sdata, sizeof( TREATMENT_STOP_PAYLOAD_T ) );
     }
 }