06 lexor- I have had fillers complain about mine, and others who just filled it
on my last fill at a fred meyer in tillamook, I watched the filler select from a double handful of fittings and adapters
and we talked about the weather while he routinely filled my tank
I asked and he told me that having the correct fitting is the key, "they are all different"
ah, website not letting me post a pic at present
the water tank drain looks like a nothing special hardware store drain, you should be able to turn whats left of the old one out