Evaluate the Situation Locate the afflicted drain and extent of backup Look at if various drains are afflicted (signifies key line concern) Search for seen h2o harm or overflow Standard DIY Techniques Pour boiling water down drain Use plunger suitable for sink/rest room Try out baking soda + vinegar Alternative https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/