Assess the Situation Track down the impacted drain and extent of backup Verify if many drains are impacted (suggests primary line challenge) Try to find noticeable h2o harm or overflow Standard Do it yourself Actions Pour boiling drinking water down drain Use plunger suitable for sink/toilet Try out baking soda https://www.kawatan.net/why-you-should-never-use-baking-soda-and-vinegar-to-unclog-a-drain/