Why sink may stink: Reasons of bad smells from your kitchen sink

02.06.2023 23:20
Updated: 13.05.2024 21:25

Wet areas of your house are prone to bad smells, and sometimes it's not that easy to get rid of them.

A kitchen sink can be a place with a very unpleasant smell, even when you wash it regularly.

But why does that happen?

Buildup of Food Residue

Over time, small particles of food, grease, and other organic matter can accumulate in the sink drain or disposal system. 

Bacterial Growth

Bacteria thrive in moist environments, and if the sink drain or disposal isn't properly cleaned or maintained, it can become a breeding ground for bacteria. 

tap water
Photo:Pixabay

These bacteria can produce foul-smelling gases as they break down organic matter. 

Clogged or Partially Blocked Drain

A clogged or partially blocked drain can cause water to accumulate in the sink, leading to stagnant water and unpleasant smells. 

This is often caused by a buildup of debris or hair in the drain pipes.

Sewer Gas Backflow

If the bad smell resembles a sewage-like odor, it could indicate a problem with the plumbing system. 

Sewer gas can sometimes flow back into the sink if there is an issue with the ventilation or plumbing traps. 

Dry P-trap

The P-trap is a curved section of the plumbing pipe located beneath the sink. 

It is designed to hold a small amount of water that acts as a barrier against sewer gases from entering the living space. 

If the sink is not used frequently or the water in the P-trap evaporates, it can lead to unpleasant odors. 
 

Kate Yakimchuk Author: Kate Yakimchuk Editor internet resource


Content
  1. Buildup of Food Residue
  2. Bacterial Growth
  3. Clogged or Partially Blocked Drain
  4. Sewer Gas Backflow
  5. Dry P-trap