Assess your situation Track down the affected drain and extent of backup Check if many drains are affected (suggests principal line situation) Seek out visible h2o hurt or overflow Simple DIY Actions Pour boiling water down drain Use plunger suitable for sink/bathroom Try baking soda + vinegar Option Eliminate and https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/