Assess the problem Track down the impacted drain and extent of backup Verify if multiple drains are influenced (signifies main line challenge) Hunt for visible drinking water damage or overflow Standard Do it yourself Measures Pour boiling drinking water down drain Use plunger suitable for sink/toilet Try out baking soda https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/