Hi. From the picture, you can see that the corner of my shower is not drying along the grout lines and the crack in the corner where the floor meets the wall is persistently wet. I'm assuming it's because it wasn't caulked and they used grout instead? I want to caulk myself, but does anyone here think I should have a plumber open it up to make sure it hasn't caused any leaks or wetness behind the wall? Thank you for any feedback.