caulking between the tub and wall tile shrunk
What type of caulking should you use between the bathtub and the bottom edge of the tile on the wall? We used purchased unsanded caulking from the tile shop which matched our grout color. This was done last February. But I recently noticed that the caulking has shrunk away from the cast iron tub and now there is a little gap.
Did we use the wrong kind of caulking? Should I dig it out and replace it with something else?