Boiling Water | Down Drain

Pouring boiling water down the drain can be a safe, effective cleaning method in the right circumstances. However, in the wrong circumstances, it can cost you thousands of dollars in plumbing repairs, melted seals, and warped fittings.

For deeper clogs, a manual snake can physically break through the obstruction without risking the integrity of the pipe walls. The Bottom Line

Large pot of boiling water + Kitchen sink. boiling water down drain

No, it is generally not safe.

Drains often harbor organic sludge where fruit flies breed. Pouring a pot of boiling water down the drain is one of the most effective, chemical-free ways to kill fly larvae (maggots) and eggs stuck to the pipe walls. Pouring boiling water down the drain can be

For the best results without damaging your pipes, follow these steps:

Copper pipes are soldered together. The solder used in old houses (pre-1986) sometimes contains lead and has a low melting point. However, modern lead-free solder melts at around 420°F to 460°F . Since boiling water is only 212°F, it won't melt the solder. Copper is safe for boiling water. The Bottom Line Large pot of boiling water + Kitchen sink

It is best used as a preventative measure for very light buildup, rather than a solution for a complete standstill backup. How to Safely Clear a Drain with Hot Water

Many people pour boiling water down the drain to "melt" grease clogs. While the hot water will turn solid fat into a liquid, it often doesn't stay liquid for long. As the water travels further down the plumbing system, it cools. The grease then re-solidifies deeper in your pipes, often creating a much more difficult clog to reach. Myth: It Kills Bacteria and Odors