I decided to clean up some of the mildew around the bottom of my shower this weekend. As I was cleaning it, I noticed some damp places around the edges where the floor meets the wall. I used some paper towels to soak up the visible water, but the next day, I noticed the water had returned. I chipped away some of the grout/caulking and it appears there is some standing water in there. I took some pictures to help illustrate, but don't know how well they show the problem. Image 1 - shows area and surrounding area where I made a hole to see how much water was in there Image 2 - close up of the hole What's the best way to deal with this problem? Is there a way of drying this out without tearing everything out and re-tiling? There only seems to be a couple of places where I am seeing this problem -- the rest of the shower looks good.