My shower consists of tiled walls and a tiled floor. Where they meet, there is grout or caulk. I think it's grout because it looks similar to the other grout on the floor, but I'm not sure. I'm a new home owner, so I'm a newbie. Anyway, there are cracks in the grout/caulk (see attached pics) and I was wondering how I can fix it. Although I haven't done it before, after watching a bunch of YouTube videos I was planning to recaulk, but a couple of questions came into mind: (1) if it's grout, can I redo that myself, and (2) if it's grout, should I replace it with caulk since it's a joint that gets lots of water exposure? Thanks for helping a n00b out.http://ift.tt/2zWGgF5 http://ift.tt/2j6KMsy http://ift.tt/2zWGhJ9 via /r/DIY http://ift.tt/2mHc5yR
