I did not describe the leak well-sorry. It is leaking on the tank side of the valve assembly. It seems to be at the junction of the valve and the pipe from the tank, but it is on the underside of the pipe, so all you can do is feel the water, cannot see it except where it drips in the compartment. We put in a new valve yesterday, still leaks. We thought it was most likely leaking at the seal, but with new seals and new assembly, now not so sure. Took it apart again and started over. Then it got too late. Back at it tomorrow. Thanks all for the suggestions.