Assess your situation Locate the impacted drain and extent of backup Test if multiple drains are affected (indicates main line issue) Seek out noticeable water destruction or overflow Fundamental DIY Actions Pour boiling h2o down drain Use plunger appropriate for sink/rest room Try out baking soda + vinegar solution Take https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/