Looks like header tank then (if you typed a space too many Mamyalynne).
Link to pressreader failed again- i had to log out of AB again too. Grr.
Hopefully CJRebus will see this - he was on earlier
My laptop doesn't like that Pressreader link- for a third time it just froze my laptop including AB.
Must be header tank. Without the full picture and details of where "communicate " fits in it's hard to think of an altenative