Squeaky floor under new porcelain tile
We are remodeling a small bathroom. There wasn't a squeak before the install. Now, there's a squeak that's loudest by the tub. I do see some mortar touching the tub and we are trying to scrape that out now but of course is dried solid.
Does anyone have any other suggestions of why the floor would be squeaking now? We do have some access to the floor from the basement but all the plumbing is in the way.
Appreciate any suggestions.