The universal consensus is that the joint will not fail, but must be fixed eventually. (Hey, it hasn't failed in 4 days.)
So, my original question.... If I clean it up, add flux, and reheat it enough to get that blob of solder that is right next to the leak to flow. And if it then does not leak; is that a "proper repair", or is it proper to redo it completely. (It may not seal, in which case the question is academic; but it it might.)
I cannot leave it overnight with JB Weld on it like one person suggested; however, if reheating does stop the leak, then the JB Weld can harden with the water on. Will putting it on add a level of security to the joint, or is it not useful? (Heck, I can even throw on a layer of fiber glass cloth over the JB if that will help. I have fixed a few things that way, but they were not subject to 60PSI.)
Thanks again.