The answer to this question might be obvious, but beyond a short length
of hose and a funnel, is there supposed to be a special filler specific
to the water tank on the camper? I'm talking about the keyed water
inlet, which is recessed enough so that you can't simply pour water in
from a bucket or plastic bottle.

I used mine for the first time this weekend, and noted that I had to
devise a way of getting water into the tank. I happened to be camping
with others who had a section of hose available.

How do other people handle this?

Dan