Index: firmware/App/Controllers/SubstitutionPump.c
===================================================================
diff -u -r11fcfaffab49f00f358124c8c285a821632eba24 -r78abcb9b115cdafae174d505b3d8b71021f3241c
--- firmware/App/Controllers/SubstitutionPump.c	(.../SubstitutionPump.c)	(revision 11fcfaffab49f00f358124c8c285a821632eba24)
+++ firmware/App/Controllers/SubstitutionPump.c	(.../SubstitutionPump.c)	(revision 78abcb9b115cdafae174d505b3d8b71021f3241c)
@@ -97,7 +97,6 @@
     U32 pumpID;                                                                                                 ///< Substitution pump ID
     U32 startStop;                                                                                              ///< Substitution pump start:1,stop :0.
     F32 speed;                                                                                                  ///< Speed in ml/min
-    F32 volume;                                                                                                 ///< Target volume in ml
 } SUB_PUMP_START_STOP_CMD_PAYLOAD_T;
 
 // ********** private data **********
@@ -434,7 +433,7 @@
  * @param targetVolume_ml dosing volume to be delivered in ml.
  * @return none
  *************************************************************************/
-void setSubstitutionPumpTargetSpeed( SUBSTITUTION_PUMPS_T pumpId, F32 targetSpeed_ml_min, F32 Vol )
+void setSubstitutionPumpTargetSpeed( SUBSTITUTION_PUMPS_T pumpId, F32 targetSpeed_ml_min )
 {
     if ( pumpId < NUM_OF_SUB_PUMPS )
     {
@@ -531,9 +530,9 @@
             if ( (SUBSTITUTION_PUMPS_T)payload.pumpID < NUM_OF_SUB_PUMPS )
             {
                 // Handle start command
-                if ( ( TRUE == payload.startStop ) && ( payload.volume > 0.0 ) )
+                if ( TRUE == payload.startStop )
                 {
-                    setSubstitutionPumpTargetSpeed( (SUBSTITUTION_PUMPS_T)payload.pumpID, payload.speed, payload.volume );
+                    setSubstitutionPumpTargetSpeed( (SUBSTITUTION_PUMPS_T)payload.pumpID, payload.speed );
                     requestSubstitutionPumpOn ( (SUBSTITUTION_PUMPS_T)payload.pumpID );
                     result = TRUE;
                 }