Boiling Water Down - Drain

You may think you cleared it, but you actually just pushed the problem deeper. Use a plunger or a drain snake for mechanical clogs. For grease, use hot (not boiling) tap water with dish soap, which emulsifies the grease rather than just melting it.

Boiling Water Down the Drain: Is It Safe or a Recipe for Disaster? boiling water down drain

Furthermore, if you have brass or copper traps (the U-bend under your sink), the heat can weaken lead solder joints used in older homes, causing drips. You may think you cleared it, but you

When you pour water hotter than the pipe’s tolerance, the plastic begins to soften. While it won’t instantly melt like an ice cube, it can warp. Warped pipes create "bellies" (low spots) where water stops draining properly. In extreme cases, the joint seals can fail, leading to leaks inside your walls. You won't see that leak until the ceiling below collapses. Boiling Water Down the Drain: Is It Safe