Evaluate the problem Find the affected drain and extent of backup Look at if many drains are impacted (implies principal line issue) Hunt for noticeable h2o harm or overflow Essential DIY Techniques Pour boiling water down drain Use plunger appropriate for sink/bathroom Try baking soda + vinegar Resolution Remove and https://www.kawatan.net/why-you-should-never-use-baking-soda-and-vinegar-to-unclog-a-drain/