Evaluate your situation Identify the influenced drain and extent of backup Test if various drains are afflicted (signifies main line difficulty) Try to look for obvious h2o destruction or overflow Simple Do it yourself Actions Pour boiling drinking water down drain Use plunger appropriate for sink/bathroom Check out baking soda https://www.kawatan.net/why-you-should-never-use-baking-soda-and-vinegar-to-unclog-a-drain/