Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r9c78cf309521ec566ada9d2f1cd76c9a9668bf78 -rba71bd3e4403e328e3e75e8e14069d954cc9db8f
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 9c78cf309521ec566ada9d2f1cd76c9a9668bf78)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision ba71bd3e4403e328e3e75e8e14069d954cc9db8f)
@@ -1536,11 +1536,13 @@
     MESSAGE_T msg;
     DG_START_STOP_TX_CMD_REQUEST_T cmd;
 
-    cmd.start = start;
+    cmd.start      = start;
+    cmd.acidType   = getTreatmentParameterU32( TREATMENT_PARAM_ACID_CONCENTRATE );
+    cmd.bicarbType = getTreatmentParameterU32( TREATMENT_PARAM_BICARB_CONCENTRATE );
 
     // Create a message record
     blankMessage( &msg );
-    msg.hdr.msgID = MSG_ID_STARTING_STOPPING_TREATMENT_CMD_REQUEST;
+    msg.hdr.msgID      = MSG_ID_STARTING_STOPPING_TREATMENT_CMD_REQUEST;
     msg.hdr.payloadLen = sizeof( DG_START_STOP_TX_CMD_REQUEST_T );
 
     memcpy( &msg.payload, &cmd, sizeof( DG_START_STOP_TX_CMD_REQUEST_T ) );