Why You Should Not Pour Hot Water Into the Sink
Many people casually pour boiling water from kettles, pots, or pans down the sink without a second thought. While this might seem harmless, it can actually cause serious damage to your plumbing system and lead to expensive repairs. Here are the main reasons why you should avoid pouring hot water into your sink.
1. Damage to Pipes
Most household pipes are not designed to handle extreme temperatures. Pouring boiling water directly into the drain can cause pipes—especially older PVC or metal ones—to soften, warp, or crack over time. This weakens the plumbing system and increases the risk of leaks.
2. Risk of Clogging
Grease, soap, and food particles often coat the inside of pipes. When boiling water is poured down the drain, it can melt fats and oils temporarily, allowing them to flow further down the pipes. However, as the water cools, those fats solidify again, creating stubborn clogs deeper in the plumbing system.
3. Damage to Sink and Sealants
Not only pipes, but the sink itself can also suffer. Porcelain sinks and the sealants around the drain can crack or weaken when exposed to sudden, extreme heat. This damage may not be visible immediately but can worsen with repeated exposure.
4. Risk of Burns and Accidents
Handling boiling water near the sink also carries a safety risk. If the water splashes back or if the sink is blocked, scalding injuries can occur.
