I just bought a 2013 Wildwood TT. My tank levers are NOT labeled, despite what my brother insists. The easiest way I can think of to identify them is by size. Anyone know if the grey tank is the larger or smaller pipe?
I'm sure your already aware of the answer to your question but I had to walk the dog anyway so I took a few photos of my Wildwood's tank valves to verify everyone's responses.
The first photo shows the grey tank valve on the left (smaller diameter pipe) and the black tank valve on the right (larger diameter pipe but you can't see it in the photo).
The second photo is a front view of the valves from a lower angle. The black tank pipe is visible in this photo.
The last photo shows the pipes from the rear of the trailer and from a lower angle. The black tank pipe is at the top of the photo and the grey tank pipe is located lower in the photo (the pipe with the bends in it).