I have a Waltec tub spout with a diverter knob and spout on the top for a hose attachment that is continually leaking hot water. I have tried replacing the hot water tap cartridge to no avail. I have currently detached the hose from the top of the spout and noticed that while I have the diverter set to the hose spout, my leaks stops. I am not sure what to do next and I'm sure it's an easy fix. Any help would be appreciated.