Thanks for the suggestions. I had forgotten about the screens. I know that I changed the filter/screen at the water pump several years ago. Will check that again, but don't think that's it, since the water pump pressure is good.
I'm assuming that I will have to take out the connection for the water hookup point. Correct? I really have the feeling that is the problem. If so, I think that I will wait until we get back down to SC before I do that, rather than while on the road!!:B It would be obvious if you knew my lack of mechanical ability and the Peter Principle in action when I get any tools in my hands!!
Again, thanks to all.