Evaluate the Situation Track down the impacted drain and extent of backup Check if many drains are impacted (implies principal line difficulty) Seek out visible drinking water destruction or overflow Simple Do it yourself Actions Pour boiling drinking water down drain Use plunger suitable for sink/toilet Consider baking soda + https://www.kawatan.net/why-you-should-never-use-baking-soda-and-vinegar-to-unclog-a-drain/