Assess the problem Track down the afflicted drain and extent of backup Examine if several drains are affected (suggests principal line problem) Search for seen water destruction or overflow Primary DIY Ways Pour boiling drinking water down drain Use plunger suitable for sink/toilet Check out baking soda + vinegar Remedy https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/