Allows setting vents to siphon

code/modules/atmospherics/machinery/airalarm.dm

@@ -403,6 +403,9 @@
 		if("incheck")
 			send_signal(device_id, list("checks" = text2num(params["val"])^2), usr)
 			. = TRUE
+		if("direction")
+			send_signal(device_id, list("direction" = text2num(params["val"])), usr)
+			. = TRUE
 		if("set_external_pressure", "set_internal_pressure")
 
 			var/target = params["value"]

code/modules/atmospherics/machinery/components/unary_devices/vent_pump.dm

@@ -144,7 +144,7 @@
 		"device" = "VP",
 		"timestamp" = world.time,
 		"power" = on,
-		"direction" = pump_direction ? "release" : "siphon",
+		"direction" = pump_direction,
 		"checks" = pressure_checks,
 		"internal" = internal_pressure_bound,
 		"external" = external_pressure_bound,

tgui/packages/tgui/interfaces/common/AtmosControls.js

@@ -37,7 +37,7 @@ export const Vent = (props, context) => {
         <LabeledList.Item label="Mode">
           <Button
             icon="sign-in-alt"
-            content={direction ? 'Pressurizing' : 'Scrubbing'}
+            content={direction ? 'Pressurizing' : 'Siphoning'}
             color={!direction && 'danger'}
             onClick={() => act('direction', {
               id_tag,