Index: firmware/App/Services/DDInterface.c
===================================================================
diff -u -r1b83a4555c4040a45cecfbea45b6570812ab281e -r8759adf902288368a8b0aaea7a809cc88822a9ab
--- firmware/App/Services/DDInterface.c	(.../DDInterface.c)	(revision 1b83a4555c4040a45cecfbea45b6570812ab281e)
+++ firmware/App/Services/DDInterface.c	(.../DDInterface.c)	(revision 8759adf902288368a8b0aaea7a809cc88822a9ab)
@@ -110,6 +110,7 @@
     preGenDialysateCmdSet.bicarbConvFactor    = 0.0F;
     preGenDialysateCmdSet.sodium              = 0;
     preGenDialysateCmdSet.bicarbonate         = 0;
+    preGenDialysateCmdSet.ufVolume            = 0.0F;
 
     dialysateDeliveryCmdSet.start             = FALSE;
     dialysateDeliveryCmdSet.dialRate          = 0.0F;
@@ -357,7 +358,7 @@
  * @param bicarbonate Level of bicarbonate used in mEq/L.
  * @return none
  *************************************************************************/
-void cmdStartPreGenerateDialysate( F32 qd, F32 dialTemp, F32 acidConvFactor, F32 bicarbConvFactor, U32 sodium, U32 bicarbonate )
+void cmdStartPreGenerateDialysate( F32 qd, F32 dialTemp, F32 acidConvFactor, F32 bicarbConvFactor, U32 sodium, U32 bicarbonate, F32 ufVol )
 {
     preGenDialysateCmdSet.start            = TRUE;
     preGenDialysateCmdSet.dialRate         = qd;
@@ -366,6 +367,7 @@
     preGenDialysateCmdSet.bicarbConvFactor = bicarbConvFactor;
     preGenDialysateCmdSet.sodium           = sodium;
     preGenDialysateCmdSet.bicarbonate      = bicarbonate;
+    preGenDialysateCmdSet.ufVolume         = ufVol;
 
 #ifndef TEST_UI_ONLY
     sendMessage( MSG_ID_DD_PRE_GEN_DIALYSATE_REQUEST_DATA, COMM_BUFFER_OUT_CAN_TD_2_DD, (U08*)(&preGenDialysateCmdSet), sizeof( PRE_GEN_DIALYSATE_REQ_PAYLOAD_T ) );