Assess the specific situation Track down the afflicted drain and extent of backup Verify if a number of drains are impacted (signifies principal line challenge) Try to look for obvious drinking water problems or overflow Essential Do-it-yourself Methods Pour boiling water down drain Use plunger suitable for sink/bathroom Consider baking https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/