Sink stinks - what can I do?


Bad odors from the sink are really uncomfortable. The causes can be many. Where these odors come from and how best to fight them, you will learn in this post.

Causes of bad smells

In most cases, the odors come from the drainage area. In a few cases, they can also come from the washbasin overflow.

Reasons for the odors can be the following:

  • Siphon is clogged or added with rotting substances
  • The drainage system contains organic substances that are rotten
  • the sealing water runs out of the siphon (if the washbasin is not used for a long time, eg because of a vacation)
  • in the overflow, a bacterial coating has formed, which decomposes the dirt there

cleaning options

  • Cleaning the siphon
  • Cleaning the overflow and flushing
  • Prevention of residual water drainage

Cleaning the siphon

You can easily remove and clean the siphon. All you need to do is loosen the union nuts and then simply pull the siphon off the pipes. When refitting, make sure that the seals are seated correctly and that the system is completely sealed afterwards.

Cleaning the overflow and flushing

On the occasion you can also clean the overflow - an inaccessible cavity inside the basin - well. How to do that, and how it works best, read in this post.

Prevention of residual water drainage

If the sink is not used for a long time, the residual water slowly drains from the siphon. This is a completely normal physical process. To delay this process and prevent it from occurring for a long time, all you need to do is pour some glycerine or cooking oil into the drain. This will save you unpleasant odors when you come home from vacation and enter the bathroom.

Tips & Tricks

Regular cleaning of the siphon prevents blockages. More often, pour some hot water into the drain and avoid soiling of hair, grease or the like as much as you can.


Video Board: How Can I Help a Stinky Bathroom Sink Drain?: Bathroom Cleaning & More