I was involved in discussions on this forum about 2 years ago related to my building a soaking tub in my house. It’s done now, and is built of a layer of plywood, Durock cement board, Ultra Set waterproofing, thinset and ceramic tile. For the first year and a half, everything was great. Now I see that I have a leak (I have access in the crawl space to the sunken tub). I was extremely careful to apply the Ultra Set according to instructions and even spoke to their tech people to make sure I was doing things right and that all materials I used were compatible. I used 3 layers of Ultra Set, so don’t see how that could be a problem. Yet I can see the general area where the water is coming from and there are no fittings in the area of the leak.
My question is: Does anyone know of problems with this product? I see on Bostik’s website that they no longer market Ultra Set as a water proofing, and it has disappeared from the shelves of my supplier. Now days, they call it a floor adhesive….no mention of waterproofing, even though that was its primary, advertised use when I applied it. This raised a red flag to me. Does anyone out there have any ideas on this dilemma? I’m assuming I will have to rip the whole thing out as I don’t see any way to repair a leak, even if I can find it.
I have been lowering the water level a little bit at a time to try to locate the leak and I think I’m close as the water flow is just about down to nothing where it had been a constant drip before.