Index: firmware/App/Controllers/Ultrafiltration.c
===================================================================
diff -u -r4237cbced773b985ff69a8c2af8287dbd5457f24 -r2bd104dd91886b7202029ce40b04fd6ccce948cb
--- firmware/App/Controllers/Ultrafiltration.c	(.../Ultrafiltration.c)	(revision 4237cbced773b985ff69a8c2af8287dbd5457f24)
+++ firmware/App/Controllers/Ultrafiltration.c	(.../Ultrafiltration.c)	(revision 2bd104dd91886b7202029ce40b04fd6ccce948cb)
@@ -147,8 +147,9 @@
  *************************************************************************/
 static void updateUFRequest( void )
 {
-    F32 qd      = getTDDialysateFlowrate();
-    BOOL bypass = getTDDialyzerBypass();
+    F32 qd           = getTDDialysateFlowrate();
+    BOOL bypass      = getTDDialyzerBypass();
+    BOOL prevUFState = isUltrafiltrationRequested;
 
     // update latest UF run/pause request
     // if qd is zero or dialyzer is bypassed, UF pump should be turn off
@@ -160,6 +161,12 @@
     {
         isUltrafiltrationRequested = FALSE;
     }
+
+    // event update on state switch
+    if( prevUFState != isUltrafiltrationRequested )
+    {
+        SEND_EVENT_WITH_2_U32_DATA( DD_EVENT_UF_PUMP_ON_OFF, prevUFState, isUltrafiltrationRequested );
+    }
 }
 
 /*********************************************************************//**