Assess the Situation Track down the affected drain and extent of backup Look at if several drains are afflicted (indicates major line difficulty) Seek out obvious water injury or overflow Primary DIY Measures Pour boiling drinking water down drain Use plunger suitable for sink/rest room Attempt baking soda + vinegar https://www.kawatan.net/how-to-find-emergency-drain-cleaning-and-plumber-services-in-etobicoke/