Index: leahi_dialin/dd/modules/dialysate_pump.py
===================================================================
diff -u -r6d6d2d7c80f38f207ec41ad9ce053030e7317169 -r2692cff9c528ec1517638b54b8e6291b0e201c6b
--- leahi_dialin/dd/modules/dialysate_pump.py	(.../dialysate_pump.py)	(revision 6d6d2d7c80f38f207ec41ad9ce053030e7317169)
+++ leahi_dialin/dd/modules/dialysate_pump.py	(.../dialysate_pump.py)	(revision 2692cff9c528ec1517638b54b8e6291b0e201c6b)
@@ -349,7 +349,7 @@
             self.logger.error("Timeout!!!!")
             return False
 
-    def cmd_dialysate_set_start_stop(self, pump_id: int, command: int, speed: int ) -> int:
+    def cmd_dialysate_set_start_stop(self, pump_id: int, command: int, speed: int, control: int ) -> int:
         """
         Constructs and sends the dialysate pump start stop command
 
@@ -363,7 +363,8 @@
         pmp = integer_to_bytearray(pump_id)
         cmd = integer_to_bytearray(command)
         rpm = integer_to_bytearray(speed)
-        payload = pmp + cmd + rpm
+        ctl = integer_to_bytearray(control)
+        payload = pmp + cmd + rpm + ctl
 
         message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_dd_ch_id,
                                               message_id=MsgIds.MSG_ID_DD_DIALYSATE_PUMPS_START_STOP_OVERRIDE_REQUEST.value,