Index: firmware/App/Modes/StateTxDialysis.c
===================================================================
diff -u -r9c833ef5623ce842267e284d958820ac0dc3a7fc -rfff7eb3560421130e0cd4788f84bce0a8ee7ff44
--- firmware/App/Modes/StateTxDialysis.c	(.../StateTxDialysis.c)	(revision 9c833ef5623ce842267e284d958820ac0dc3a7fc)
+++ firmware/App/Modes/StateTxDialysis.c	(.../StateTxDialysis.c)	(revision fff7eb3560421130e0cd4788f84bce0a8ee7ff44)
@@ -20,6 +20,7 @@
 #include "BloodFlow.h"
 #include "Buttons.h"
 #include "DDInterface.h"
+#include "HemoDiaFiltration.h"
 #include "FluidBolus.h"
 #include "Messaging.h"
 #include "ModeTreatment.h"
@@ -112,6 +113,7 @@
     F32 bicarbConvFactor = BICARBONATE_CONVERSION_FACTOR;
     U32 sodium           = getTreatmentParameterU32( TREATMENT_PARAM_SODIUM );
     U32 bicarbonate      = getTreatmentParameterU32( TREATMENT_PARAM_BICARBONATE );
+    F32 hdfRate          = getCurrentHDFRate();
 
     doorClosedRequired( TRUE );
 
@@ -121,10 +123,15 @@
     setAlarmUserActionEnabled( ALARM_USER_ACTION_END_TREATMENT, TRUE );
 
     // Set actuators as appropriate for state
-    cmdStartGenerateDialysate( setDialysateFlowRate, setUFRateMlMin, dialTemp, FALSE,
-                               acidConvFactor, bicarbConvFactor, sodium, bicarbonate  );
+    cmdStartGenerateDialysate( setDialysateFlowRate, setUFRateMlMin, hdfRate, dialTemp, FALSE,
+                               acidConvFactor, bicarbConvFactor, sodium, bicarbonate );
     transitionToDialysisState( currentDialysisState );
 
+    if ( hdfRate > 0.0F )
+    {
+        StartHemodiafiltration();
+    }
+
     // Set substate for event
     setCurrentSubState( (U32)currentDialysisState );
 }