Why Do We Need Bottle Traps for Wash Basins?

Updated on April 8, 2019
carriethomson profile image

Carrie is an interior designer and blogger. She has eight years of experience writing about decorating and gardening.

A bottle trap fitted under a wall-hung basin.
A bottle trap fitted under a wall-hung basin.

The Bottle Trap Below the Basin

Have you ever noticed the bottle trap that sits right under the sink or basin? We all tend to see and choose the most beautiful basins and taps for our bathrooms, but never notice that bottle trap, a basin accessory that does so much more than just making the bathroom look great.

What Is a Bottle Trap and Why Do We Need It?

The bottle trap is an essential element of the basin's plumbing that keeps the bathroom hygienic and odor-free. When we use the basin, the used water goes down the basin waste, into the drainage pipe, and then into the sewer, where a lot of other waste and dirt is accumulating. Naturally, that accumulation involves a lot of nasty and potentially harmful gases. What is there to prevent those foul smells from flowing back up through our drainage pipes, through the wastes, and back into our bathrooms? (Ewww! Sounds bad, doesn't it?) This is what a waste trap (bottle trap, P trap, or U bend) is for.

We need those traps to prevent gases from contaminating bathrooms, thus helping maintain hygiene in the bathroom and keeping it safe for us.

how does a bottle trap work?
how does a bottle trap work?

How Does a Bottle Trap Work?

It is a vessel which has a bigger diameter than the plumbing pipe that comes from the basin. When water gushes down, this vessel fills with the new water. Thus, the trap always remains filled with a certain amount of water.

When the sewer gases waft up the system through the outlet pipes, they reach the bottle trap, but here they find their way sealed with the water that has collected in the trap. The passage remains closed and doesn’t allow the return waste and gases to enter.

Toilet trap
Toilet trap

The Same Basic Concept Works for Other Plumbing Fixtures

You must be wondering if the same thing can happen with the bath tub, shower, and (worst of all) the toilet. Imagine those gases floating out of the toilet and into your bathroom. Good thing the toilet has an inbuilt trap that functions exactly like the bottle trap and prevents sewage gases from returning. The shower and the bath, too, have similar systems.

Choose the Most Suitable Trap for Your Basin

There are various sizes, shapes, and finishes available in any trap style. Choose the most appropriate model to match the finish and design of the other bathroom fittings and sync with the bathroom decor.

This article is accurate and true to the best of the author’s knowledge. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters.

Comments

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    • profile image

      omolade 

      5 months ago

      very concise and useful

    • carriethomson profile imageAUTHOR

      carriethomson 

      8 months ago from United Kingdom

      thank you!

    • profile image

      sk sulaman 

      8 months ago

      very good

    • manatita44 profile image

      manatita44 

      2 years ago from london

      Sweet and concise. I have also learnt something new. Thanks Carrie.

    • profile image

      Voltaire 

      3 years ago

      Very useful and thanks for explaining. Was wondering what these things do - many websites just discuss their aesthetics and not their practical use.

    • profile image

      Bhavesh solanki 

      5 years ago

      you are very talented girl. keep up the good work.

    • profile image

      srinivasan 

      8 years ago

      Very good explanation.

    • carriethomson profile imageAUTHOR

      carriethomson 

      8 years ago from United Kingdom

      hey formosan girl! thanks for dropping by! sure do share it with husband! would be very happy if it is useful to him!!

      -carrie

    • formosangirl profile image

      formosangirl 

      8 years ago from Los Angeles

      Interesting. Will be sharing this article with my husband who likes modern bathrooms.

    • carriethomson profile imageAUTHOR

      carriethomson 

      8 years ago from United Kingdom

      Hey aceblogs!! thank you so much for the appreciation!! well the details are more than important in any design you see:)) keep visiting

      carrie

    • Aceblogs profile image

      Aceblogs 

      8 years ago from India

      Wow your hubs are so much full of information , frankly speaking i never ever bothered to look at the basin's structure before it , lol . Great share

    • carriethomson profile imageAUTHOR

      carriethomson 

      8 years ago from United Kingdom

      hey! katrinasui. thanks for such a wonderful comment!!

    • katrinasui profile image

      katrinasui 

      8 years ago

      carriethomson, you are very talented girl. keep up the good work.

    • carriethomson profile imageAUTHOR

      carriethomson 

      8 years ago from United Kingdom

      oh thank you so much prasetio for the appreciation:)

      carrie!

    • prasetio30 profile image

      prasetio30 

      8 years ago from malang-indonesia

      You never cease to amaze me with your talent related with great stuff like this one. Thanks for share with us. Cheers..

    • carriethomson profile imageAUTHOR

      carriethomson 

      8 years ago from United Kingdom

      Take Care :)

    • Lord De Cross profile image

      Joseph De Cross 

      8 years ago from New York

      you are welcome...TC?

    • carriethomson profile imageAUTHOR

      carriethomson 

      8 years ago from United Kingdom

      Hi lord!! that was so kind of you, and thanx for liking it and leaving a comment as well :)

      TC

      carrie

    • carriethomson profile imageAUTHOR

      carriethomson 

      8 years ago from United Kingdom

      Hi iZeko!! nice name gas trap!! imagine with that name it could be used at such a lot of places ;))

    • Lord De Cross profile image

      Joseph De Cross 

      8 years ago from New York

      Formidable! just lika a pro..Certainly a real pro! Nice Carrie! VOTED UP.Very useful too!

      LORD

    • iZeko profile image

      iZeko 

      8 years ago

      It’s always nice to learn something new. Maybe its name should be changed to gas trap ;-)) Rated up!

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