What kind of shower is it? Is it one of those vinyl stalls, just a vinyl pan, or is it 100% tile shower? If it's vinyl, and the seams / groutlines are visually decent, I'm going to say that the chance it's a membrane issue are smaller.
Depending on your bylaws, this could be a bit of a grey area. Pipes are typically the Board's responsibility, but membrane is definately grey - I think it's the owner's responsibility unfortunately
Water is one of the most insidious things in a condo. Rarely does it go in a straight path, especially in a concrete building. Water came into my unit - turns out it was a bad shower diverter 2 floors up and 1/2 a floor to the north.Geniuses in that unit would hang a bucket from the pull knob to fill it and somehow caused it to break.
Some exploratory wall opening is probably going to be needed to solve this. I would make sure you and someone from the Mangement Corp are there when they do. Doesn't hurt to video it either.
Last edited by I-Hate-Hulse; 05-21-2013 at 06:05 PM.
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