Creaking under the tub
I live in a townhome that was built 20 years ago by a famous-name (or infamous-name) company - wherever they could cheap out, they did. Anyway, the tub/shower they put in is fiberglass - the shower wall surround is 3 separate pieces, and I've never been confident that they sealed it properly - there were always unsealed holes at the tops of the soapholder corners, but they were too big to plug with caulk, but it seemed to be OK. At one point about 7 years ago water did leak out up at one of the outer corners - the shower surround wall projects out over the tub and the water evidently collected there then ran around the bottom of the surrond (unseen) and dripped out at the corner - a piece of the adjoining wall drywall was damaged and the vinyl time on the floor lifted - the floor under the tile was likewise soaked. Once the porblem was discovered and fixed, things seemed to be OK. That all happened about 7 years ago, but for the last several months when I step into the tub and and move around in the middle of the tub it creaks. My fiance said he thought tubs were supposed to be set in some type of cement layer, but if that's so, I have my doubts that it was done. I tried squirting some insulation foam under the tub and it just seemed to make the creaking worse. Does this sound like a rip the tub out type of problem? I am getting the house ready to put on the market and really need to know what this might be and what should be done about it. Thanks.