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How to clean drains with boiling water and salt?

Learn how to safely clear clogged drains with boiling water and salt. Follow our step-by-step guide for preparation, careful pouring, and effective flushing to remove buildup.

Reviewed by Content Team

Head of Content, D. Gorenko

Updated June, 5

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How to clean drains with boiling water and salt?

 
Preparation
 

  • Gather necessary items: salt, a kettle or large saucepan, and access to tap water.
  • Wear protective gloves and eyewear to avoid burns from boiling water.
  • Ensure the area around the drain is clear and that you have a stable surface to work on.

 
Boil Water
 

  • Fill your kettle or saucepan with enough water to fully flush the drain.
  • Place the water on the stove and bring it to a rolling boil.
  • Monitor the boiling process carefully to prevent overboiling or accidents.

 
Add Salt into the Drain
 

  • Measure about half a cup of salt; adjust depending on the size of the drain and how clogged it appears.
  • Slowly pour the salt directly into the drain, ensuring it distributes evenly around the opening.
  • The salt acts as an abrasive agent and helps break down grease or residue buildup.

 
Pour the Boiling Water
 

  • Carefully and gradually pour the boiling water into the drain over the salt.
  • Allow the water to mix with the salt, which helps to dislodge blockages and clear residue.
  • Take extra care to avoid splashing, and ensure that the water flows steadily down the drain.

 
Allow to Work and Flush
 

  • Let the salt-water mixture sit in the drain for about 10-15 minutes to effectively break down the buildup.
  • After this period, flush the drain with additional hot tap water to help clear out the loosened debris and salt.
  • If necessary, repeat the process to achieve better cleaning results.

 
Safety Precautions
 

  • Always handle boiling water with extreme care to avoid burns or accidents.
  • Make sure children and pets are kept at a safe distance during the cleaning process.
  • Keep a fire extinguisher or kitchen towel nearby in case of unexpected spills.

For homeowners and businesses in St. Louis and Nashville, these steps serve as a practical guide to keeping drains clear and safe.

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