I just bought a wall hung toilet from bath store and have exactly the same issue. Here is a small drainage hole at the front and after a few flushes a small amount of water starts leaking. We wasted hours checking there was no leak from the I let pipe which there is not. It appears water is escaping from inside the bowl cavity during a flush and coming out of this drain hole.
It must be a manufacturing fault. I called bathstore who weren’t much help at all but have asked me to send pictures to the technical people. I’m going to just request a swap out.
It must be a manufacturing fault. I called bathstore who weren’t much help at all but have asked me to send pictures to the technical people. I’m going to just request a swap out.