The washer hose is hidden most of the way from reservoir to jets, by insulation on the bonnet, and a piece of sound deadening foam stuff down by the grin t hinge.
If it's connected to the bonnet, you can pull out the foam and follow it to the reservior, which is you can see if you look to the left of the coolant reservior. Not actually taken this off before so not seen where the pumps are located.
If is not connected to the bonnet, then remove the black insulation and reconnect.
You'll probably find it's emptied the reservoir if it's disconnected at the pump.
Afraid I can't help you with the rasp noise, might be worth checking the corrugated pipe from the airbox housing and throttle housing for splits?