I have soooo many other things I should be doing!
And it took me longer to utilize Photobucket than it did to take all the photos! ARGH!
Here's a better look as to what's down there. It looks like this is what they call a "spool type" adapter (??). It also appears there may be female threads for a "T-bar" removal?
With that tubing being connected only with a hose-clamp, I know better than to pull on that to remove the adapter. So now I'm researching how to remove a spool-type adapter.
So Tony and Rex, this may address both of your responses. Maybe the spool-type adapter needs to be used when there's no bladder tank? But now it's how to safely remove it (corroded side-walls, etc.).