I was replacing the impeller on a 1986 AQ125B and when I pulled the fresh/sea water pump off, a small rubber nipple that looked like a check valve or circular gasket with a crimped funnel/ducks bill on one end, fell out. I have no idea where it came from and scoured the internet to find a parts/workshop manual to no avail. I have a picture but not sure if this will work from IG. It's possible the it goes into one of the metal outflow or inflow pipes or maybe directly into the pump. Any help is more than appreciated!!!!!! Just trying to get it put back together correctly.