Assess the specific situation Track down the influenced drain and extent of backup Test if many drains are influenced (signifies primary line problem) Look for obvious water damage or overflow Primary DIY Ways Pour boiling water down drain Use plunger suitable for sink/toilet Consider baking soda + vinegar Answer Take https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/