My toilet is clogged and my shower
So their question is, “Why in the world would my toilet water back up into my shower drain?” The cause: sewer line clog. Basically, your toilet is trying to use a . Stoppage in your home's main sewer line is the ultimate clog. All of your clog if you: Flush the toilet and the water backs up into the bathtub or shower drains. Jan 19, Many homeowners fear dealing with a clogged toilet, especially when they have guests. This fear is not totally unfounded since it is estimated.