Which direction does the pump duct seal go?

[ItsRixter]

One side is solid, the other has a grove.

I am thinking the solid side goes to the pump and grove side goes to the hull. Can anyone confirm.? I have a shop manual and it doesn't even mention this point.
thx

 

[Harbor]

Like your thinking, solid side towards the pump... lip seals towards the shoe

 

[ItsRixter]

thx Harbor