Evaluate your situation Track down the affected drain and extent of backup Look at if several drains are afflicted (signifies most important line situation) Search for noticeable h2o harm or overflow Primary DIY Measures Pour boiling h2o down drain Use plunger appropriate for sink/bathroom Check out baking soda + vinegar https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/