Boiling Water Down Drain Fixed May 2026

Pouring boiling water down a drain is a common home remedy for minor clogs, but

What to Do Instead

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As we go about our daily lives, it's common to encounter situations where we need to dispose of hot water, such as after cooking or washing dishes. One tempting solution might seem to be pouring boiling water down the drain, especially if we're trying to quickly get rid of excess water or clean the sink. However, this seemingly harmless act can have serious consequences for your plumbing system and the environment.

1. Remove Standing Water: If the sink is full, bail out as much water as possible with a cup. The chemical reaction works best when it is concentrated near the clog.
2. Pre-Heat the Drain: If you have metal pipes, pour a steady stream of boiling water down the drain to warm up the pipes and loosen the edges of the blockage.
3. Add Baking Soda: Pour the 1/2 cup of baking soda directly into the drain. Use a funnel if the hole is small.
4. Add Vinegar: Pour the 1 cup of white vinegar into the drain.
5. Seal It: Immediately cover the drain with the plug or a wet rag. You want the fizzing reaction to happen inside the pipe, pushing down on the clog, not bubbling up into the sink. Let it sit for 5–10 minutes.
6. The Flush: While the mixture sits, boil a fresh kettle of water. Once the time is up, remove the plug and pour the boiling water down the drain to flush away the loosened debris.

Clear Standing Water: If the sink is full of cold water, boiling water won't work. It will lose its heat the moment it hits the standing water. Bail out the sink first.

Step-by-Step: