Assess the specific situation Locate the affected drain and extent of backup Check if various drains are influenced (indicates most important line challenge) Hunt for noticeable h2o injury or overflow Fundamental Do it yourself Measures Pour boiling h2o down drain Use plunger appropriate for sink/rest room Attempt baking soda + https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/