There is a leak we can't find. Replaced float assembly and flapper. It's a slow leak. With the supply cut off at the wall, it leaks down to below the flapper.
How is the standpipe (overflow) removed for replacement? Is there a large nut accessible only when the tank is removed? Could the leak be stopped with Tub & Tile Caulk around the very bottom of the pipe? Help Please!
TKS, Scott