Assess the Situation Locate the affected drain and extent of backup Examine if many drains are influenced (signifies primary line concern) Try to find visible h2o hurt or overflow Simple Do it yourself Techniques Pour boiling water down drain Use plunger suitable for sink/rest room Consider baking soda + vinegar https://www.kawatan.net/why-you-should-never-use-baking-soda-and-vinegar-to-unclog-a-drain/