Evaluate the Situation Track down the affected drain and extent of backup Look at if several drains are afflicted (signifies main line situation) Try to find obvious water problems or overflow Fundamental Do-it-yourself Steps Pour boiling drinking water down drain Use plunger suitable for sink/toilet Consider baking soda + vinegar https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/