Evaluate the Situation Identify the impacted drain and extent of backup Look at if a number of drains are afflicted (signifies key line problem) Hunt for visible drinking water problems or overflow Fundamental Do-it-yourself Techniques Pour boiling h2o down drain Use plunger appropriate for sink/bathroom Consider baking soda + vinegar https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/