Thank you all for your feedback.
It has really been a help in letting me get a grasp on whats going on with my tank.And you have all thrown some good ideas out there. Thank you.
AnEv942
You are right on with what we have.
when I look at it from above there is no collar as I previously thought but instead there is a depression around the outlet hole and what I can see moving is the top part of that flange sticking thru the hole and maybe a 1/4 inch above the tank bottom.
There is no water left in that recession.
We will find out if the flang broke all the way loose from the tank or just a small area.
We are open to a small repair or if we have to we will replace both of the valves and the connecting plumbing.
The camper has been put away in the barn and our nights have been in the mid teens, so we won't be working on it untill we hit a warm stretch of weather.
Again thank you all very much.
Jon