We have water coming up underneath the vinyl tiles in our bathroom. Fairly recently we replaced the toilet but don't think that is the problem. Our tub is right beside the toilet. It is a cast iron with a wall wrap-around for the shower. The plastic rod/handle of the surround has come loose and sometimes falls out. Could that be where our water is coming from? What is the best way to seal that? We also have mildew on the caulking. Is there a way or a product that makes it easier to remove the old and put in new caulking? I think maybe if we get that all sealed up it might fix our water problem.