Water hook up for manual self priming water faucet

I have a '79 Bonnie that I have been restoring (so far I have repaired the door, new cushions, flooring, tires, etc). The one thing I am having a hard time with is the water hook up.

The sink swings up into position, and lines up with a black pipe that exits out the side of the trailer. There is a silver faucet with what looks like a hand pump lever beside it. There is a small pipe on the other side but no hoses, no water tanks nothing.

Does anyone else have something like this and could post picture of their set up so I can get mine working??
Thanks

I will set mine up tomorrow and snap some shots for ya it's an 89 1050 but should be pretty close to the same thing I am in the middle of restoration as well and just dropped the water tank out to clean and re plumb it

Sorry was asked to work late tonight won't get a chance to set mine up tonight for ya but from what I have read there are two types of water storage 1 that goes directly under the sink and another type that goes under the trailer on the drivers side if yours has the under the sink model there won't be a filler area on the outside of the trailer or a water hookup a quick and simple fix for the under the sink type storage container you could just us an Aquatainer and some sort of in line water filter for your hoses it makes for more portability when refilling the storage tank