Evaluate the specific situation Locate the afflicted drain and extent of backup Check out if several drains are afflicted (signifies main line challenge) Seek out visible drinking water damage or overflow Standard DIY Methods Pour boiling h2o down drain Use plunger appropriate for sink/bathroom Try baking soda + vinegar Resolution https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/