k1100LT windscreen drain hose?

[blackie1]

hi guys, whilst out today riding a 640km loop from Christchurch ,kurow, omarama, mt cook{pictured} and back to Christchurch. new Zealand.
it was an absolutely brilliant clear day with empty roads. 7.5 hrs including 2 fuel stops and a lunch break. my bike just purred the whole way.

during the ride i noticed the bottom of a black  corrugated plastic hose flapping about inside my front fairing just where you can reach in and adjust the headlight.
I had never seen it before so I guess it has become un-tucked from somewhere.
what is it? some sort of drain from inside where the windscreen retracts? any enlightenment appreciated.

[Inge K.]

Drain hoses:

[blackie1]

cheers for that Inge.
 one must have snapped off half way down to where the diagram shows it should exit the front cowling.
good one thanks for the quick reply