Graywater tank drain question
I just purchased a 1990 E-250 Sportsmobile. I'm new to Sportsmobiles but experienced with RVs in general, and I'm a little confused by the graywater tank drain.
Other RVs I've owned either had a standard 3/4" male garden hose fitting for the graywater drain, or the graywater fed into a 3" bayonet fitting for a standard RV dump hose.
On this van, the graywater tank drain goes to a gate valve, then a very short stub with a 2.25" outer diameter (1.75" inner diameter). There doesn't seem to be any sort of fitting for a hose to direct the water.
Am I missing a piece? The valve faces backwards toward the rear wheel, so I could imagine a blowout ripping off something attached to it, but it doesn't appear broken off.