Assess the problem Track down the impacted drain and extent of backup Verify if multiple drains are influenced (indicates primary line concern) Seek out visible h2o injury or overflow Simple DIY Steps Pour boiling drinking water down drain Use plunger appropriate for sink/bathroom Try out baking soda + vinegar Resolution https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/