I saw this video that had a good shot of the inside of the cover which had the part #:

[TUBE]https://youtu.be/n0gGkjIug8U?si=M7-9Y8VYcYh5b7W7&t=283[/TUBE]

With the part number, I found this hose that has the bayonet connector that seems to fit.  Bought it from Amazon for an easy return if it doesn't work.

I bought a used 2023 153 and I didn't see the outdoor spray hose in the sale pictures, so I asked the  dealer to make sure the hose was included.  Sure enough, when I arrived to make the picture, a hose was there, but I don't know what it's supposed to look like.  My 180 had a full outdoor shower behind a keyed panel, with hot & cold knobs.

Is this what it's supposed to look like?

I pushed it in the port, and water sprayed out, but there didn't seem to be anything to lock it in.  Seems like there's a locking collar missing.  There does seem to be an indentation for a twist-lock bayonet mount.  The cover is missing also.

There's no nibs on the sprayer hose.

Is this what the sprayer port & hose supposed to look like?  What do I need to allow that sprayer hose to be connected?

I bought this quick disconnect collar, but it looks like it wants to be connected to a threaded connection.

And, as a backup, I bought an entirely new port, but I'd rather not install it if I can just put on a new collar.

Any wisdom from the collective borg brain?

Recently hooked up to city water, pressure regulated to <50 gpm, and found that it was spraying out pretty badly from behind the rotating screw-down cuff on the outside hookup. 

It was also leaking on the inside, both into the space between outer and inner walls, as well as into the interior surface of the camper beneath the bed.

I removed the water hose, made sure the pump was turned off, dried everything off, and then checked for any moisture leaking from any connection points coming from the city connection to the other lines inside the camper. Nothing found.

So main question is - How challenging is it to remove the city hookup assembly to test and possibly replace it? Anyone here ever done that? 

Alternately - Any other steps I could take to test if maybe the spray from the outside half of the hookup assembly was just a pressure relief thing, and I should actually be looking for line blockages or other issue elsewhere in the system?

Thanks for your input!