Assess your situation Track down the affected drain and extent of backup Check if many drains are affected (signifies main line situation) Search for seen h2o injury or overflow Essential Do-it-yourself Ways Pour boiling water down drain Use plunger appropriate for sink/bathroom Check out baking soda + vinegar Answer Clear https://www.kawatan.net/why-you-should-never-use-baking-soda-and-vinegar-to-unclog-a-drain/