Evaluate the Situation Locate the afflicted drain and extent of backup Check if various drains are influenced (indicates most important line challenge) Seek out visible drinking water damage or overflow Primary DIY Methods Pour boiling h2o down drain Use plunger appropriate for sink/toilet Check out baking soda + vinegar Remedy https://www.kawatan.net/why-you-should-never-use-baking-soda-and-vinegar-to-unclog-a-drain/