Evaluate the Situation Identify the afflicted drain and extent of backup Look at if many drains are influenced (signifies primary line issue) Seek out seen drinking water damage or overflow Basic Do it yourself Measures Pour boiling h2o down drain Use plunger appropriate for sink/rest room Try out baking soda https://www.kawatan.net/why-you-should-never-use-baking-soda-and-vinegar-to-unclog-a-drain/