Kerdi flood test failure - what now?
I filled up my 32x60 kerdi shower near the top of the curb and started the timer. Measured several times in the first hour. By 1 hour, the level had dropped about 1/16" to 1/8" of an inch, so I pulled the plug, to prevent any damage downstairs.
What now? How do I tell where the leak is? There was nothing obvious during the test . Some surface bubbles, but nothing steady. One of the corner pieces I discovered after pulling the plug did not appear to have a good seam at the wall floor joint, so that to me is priority #1 (I could smoosh it with my finger right at wall/floor junction and could see some water/air escape. But that's only my best guess. What to do? Do I let it dry and the try and see what still looks wet under the kerdi? Do I just put another layer of band around the edges?