This question may have been answered already, but I'm not sure how to really label the problem. My house is in Baton Rouge, lots of humidity. Recently I noticed a line of red sticky material seeping out of one spot along the caulk by the bathtub and wall. The spot is along the outside wall. At first I thought it was some red shampoo, but I noticed it this morning again. I suspect it may be a leaking hot water line. Any suggestions?