water inlet only?

[Anders79]

new to AS. My 2010 25fb has a water inlet only above the bigger city water inlet. 2 questions: what is this smaller water inlet for? and 2) my little plastic cap that covers it does not stick tight and always flys open. anybody have a neat trick to remedy?

[AnnArborBob]

The second water connection (i.e., the one above the city water) is for the black tank flush. It's a handy feature and it pays to use it periodically to give the black tank a good cleaning. Use the "Search Function" to find threads that discuss the proper use of the black tank flush.

Happy camping!

[dkottum]

Bob answered the black tank flush question, careful to never mix them up when hooking up water line.

I cut off the plug that never stays put and got a screw-in cap for it. The 2013 and on Airstreams come with a screw-in cap, you can get one at a dealer maybe, or Camping World, Home depot but they may be white.