If water is coming up through your basement drain when you shower, you’re not dealing with a “small clog.” You’re dealing with a main sewer line problem , and it won’t fix itself. Here’s what’s actually happening. Why Water Comes Up the Basement Drain Your home’s plumbing system all connects to one main sewer line that runs to the city sewer (or your septic system). When that main line becomes blocked, water has nowhere to go. So when you: Take a shower Run the washing machi
