Shower Pan Not Drying - No Preslope?
I had a bathroom remodel "finished" about two months ago. A couple days after the tile was finished, we turned the shower on (6 shower heads) and noticed the leaking from the step/ledge/threshold/whatever almost immediately. We found that the joint under the bench was completely wide open. What happened was that the water drained through this gap and basically filled up the shower pan until it overflowed at the lowest point, the threshold.
I let it sit for a couple of days to dry, then caulked this joint, and found the leak to be fixed.
Now, the problem is that floor tile is soaked and does not appear to be drying. The tile guy explained that the pan was sloped with weep holes, etc., and that eventually it would drain, but it had been so overwhelmed that it was going to take a long time to drain. They told me to go ahead and use it, and eventually it would drain. Well, I don't quite trust this company (long story), so I decided not to use it. I waited 5 weeks, 3 with a heater in the shower, and noticed no changes whatsoever. Most of the pictures below are from the first week, but the same picture at week 5 is indistinguishable from these.
At this point the tile guy has agreed to tear the tile out, let it dry, then reinstall new tile. He is not going to redo the pan though, as he says it is just fine. He is telling me though, that travertine will constantly absorb water, and that eventually the entire floor will be saturated again. He is now trying to convince me to install a porcelain tile instead, and says that will be the only way to keep the pan dry.
Since it is being torn out anyway, we've begun using it, and we are now seeing the floor become even more wet, just like the tile guy said. The last picture if form today, after the shower has had 3 days of non-use. It almost looks like the original water has begun to drain into the weep holes, but I suspect that this is simply new water. One of the other issues is that the drain can't keep up with even a single shower head (which seems to flow a ridiculous amount of water), and about an inch of water pools up over the entire floor during the shower.
So, after doing a lot of research here, I'm inclined to say that this looks like a case of no preslope, despite the tile guy's claim that there is. The other thing I don't understand is why the travertine is soaking up the water even now. I'm not really buying the guy's story that it can't be sealed, but I'll admit that I really don't have a clue.
Any advice would be appreciated. At this point, I have no idea what the correct course of action would be, and I don't have confidence that the tile installer has my best interests in mind. Thanks.
This is looking under the bench/slab toward the shower:
I shoved the camera into top of the pan liner:
Original leak point:
5 days, or 5 weeks later: