Evaluate the problem Track down the impacted drain and extent of backup Test if many drains are impacted (indicates most important line difficulty) Hunt for noticeable h2o hurt or overflow Basic Do-it-yourself Techniques Pour boiling h2o down drain Use plunger suitable for sink/rest room Attempt baking soda + vinegar Option https://www.kawatan.net/why-you-should-never-use-baking-soda-and-vinegar-to-unclog-a-drain/