Index: MessagePayloads.h
===================================================================
diff -u -r865b0bae67e2ae5368f948fe58f22a637f6818e2 -r305aea4109b059859deb457ec4ecb682e28569be
--- MessagePayloads.h	(.../MessagePayloads.h)	(revision 865b0bae67e2ae5368f948fe58f22a637f6818e2)
+++ MessagePayloads.h	(.../MessagePayloads.h)	(revision 305aea4109b059859deb457ec4ecb682e28569be)
@@ -49,6 +49,12 @@
     U32  bicarbType;                                    ///< Type of bicarb being used to make dialysate.
 } DIALYSATE_DELIVERY_REQ_PAYLOAD_T;
 
+/// Payload record structure for requesting pre generate dialysate.
+typedef struct
+{
+    BOOL start;                                         ///< Flag indicating whether to start pre-gen dialysate(TRUE) or stop (FALSE).
+} PRE_GEN_DIALYSATE_REQ_PAYLOAD_T;
+
 /// Payload record structure for requesting RO water.
 typedef struct
 {