Index: leahi_dialin/td/modules/air_trap.py
===================================================================
diff -u -rb4e77cdb95bebe6ba3fc49c2389d7e6127a81e9c -r0b843faddee1416bfddb6f2589aedecf950c6df8
--- leahi_dialin/td/modules/air_trap.py	(.../air_trap.py)	(revision b4e77cdb95bebe6ba3fc49c2389d7e6127a81e9c)
+++ leahi_dialin/td/modules/air_trap.py	(.../air_trap.py)	(revision 0b843faddee1416bfddb6f2589aedecf950c6df8)
@@ -234,7 +234,7 @@
 
         vlv = integer_to_bytearray(valve)
         sts = integer_to_bytearray(valve_state)
-        payload = sts + vlv
+        payload = vlv + sts
 
         message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_td_ch_id,
                                               message_id=MsgIds.MSG_ID_TD_2_WAY_VALVE_SET_STATE_REQUEST.value,