Do I Need A Trap Under The Kitchen Sink?

Do I need a trap under the kitchen sink? The short answer is yes. Under the sink is where the pipes enter your home, so it is a good place for a trap. Also, it is a good idea to install a trap in each sink, tub and shower.

This is a difficult question to answer, as what works for one person may not work for another. That being said, installing a trap under your kitchen sink can help to reduce the amount of waste that ends up in the municipal waste stream. This is because kitchen waste includes things like food scraps, bones, and other fluids. By catching these materials before they make their way down the drain, you can help to reduce the amount of waste that ends up in landfills.

Let’s continue this blog. You will get a detailed guide about different types of sink traps and the purpose of having a trap installed under a sink. Also , you will get an idea about average cost of different types of kitchen sink traps.

What are the different types of sink traps
What are the different types of sink traps

What is a trap for kitchen sink?

A trap for the kitchen sink is a device that helps to keep water from draining out of the sink and into the sewer. It has a curved part that catches water, and this water seals the drain so that sewer gas can’t escape and enter your home. Traps are often found in drains because they allow sewer gas to escape. Traps inside toilets serve the same purpose as any drain’s trap.

READ MORE: What Is The Rough In Height For Kitchen Sink Drains?

What are the different types of sink traps?

There are some different types of sink traps. The main difference is in the design of the curved part of the trap. Some traps have a flat design, while others have a curved design. Here you can find more about the different types of sink traps:

  • P Trap: The P trap is the most common type of sink trap. It has a curved part, and a horizontal part that connects to the vertical pipe. P traps work by trapping water inside the curved part of the trap so that sewer gas can’t escape from your home through drains. The trapped water seals the drain so that sewer gas can’t escape from your home through sinks and other drains in your home.
  • Q Trap: These plumbing traps are used in the latrine submerged storage room. It is similar to an S trap, but it is only being used on the upper story except for the ground floor.
  • S Trap: S trap is a pipe that curves into an ‘S’ shape to hold water and prevent sewer gases and bacteria.  This is the most common type of sink trap. It is used in sinks, showers, and other drains in your home. The curved part of the trap holds water, and the horizontal pipe connects to the vertical pipe.
  • Gully trap: A gully trap is a basin in the ground that collects wastewater from your house before it enters the underground sewer. A water seal is placed on the basin to prevent smells from reaching the surface. Well-made gully traps will prevent sewage from flowing into your property or public pipes.
  • Floor Trap / Nahni Trap: The floor traps are also called Nahni Traps. They prevent foul gases from entering the building by providing a water seal.
  • Bottle Trap: The bottle trap is a style that emerged from Europe when older buildings had small bathrooms. The design uses the sink’s drain hole as its focal point, where the main pipe connects to it. This led to an upside-down bottle-like shape which gave off this look into the pipes below for natural light and good views of people inside their own homes.
  • Intercepting Trap: Intercepting plumbing traps are given at the intersection of buildings and public sewers. There is an interceptor sewer vent for foul gases, to keep sewage from entering a building sewer by providing a water seal.
  • Running Trap: Running trap is like a U, it’s specifically designed to allow liquid flow but prevent sewer gases from entering.
  • Drum Trap: Drum traps are an older and less popular plumbing component that help prevent larger items from entering the drain, but they can be dangerous if not installed correctly.
  • Grease Trap: A grease trap is a plumbing device designed to intercept most greases and solids before they enter a wastewater disposal system, ensuring that your pipes remain free of contaminants.
  • Straight-Through Trap
  • Low-Level Bath Trap
  • Building Trap
  • Bell Trap

How much does it cost to install a trap under a kitchen sink?

The average cost to install a sink trap is $5.88, with a range between $5.28 and $6.49. The total cost of labor and materials for each assembly is 215.49.

READ MORE: Can You Replace A Kitchen Sink Without Replacing The Countertop?

Average Cost of Different Types of kitchen sink trap

The average cost of a kitchen sink trap depends on various factors, such as the material used, the size and shape of the trap and installation costs. The average cost of a kitchen sink trap ranges from $15 to $50. Here are 5 kitchen sink traps that are available on the market.

Product NameTypePrice
EasyDrain Ref. 510 Expandable & Flexible TrapP TrapCheck Price
VIVA Kitchen Sink Waste TrapP TrapCheck Price
Coflex ‎DK-100 single kitchen TrapSnappy TrapCheck Price
McAlpine Water Seal Adjustable Inlet TubularP TrapCheck Price

What is the purpose of having a trap installed under a sink?

The purpose of having a trap installed under a sink is to prevent harmful materials from entering the public sewer. This includes grease, oil, waste, and most other types of liquids. A trap should be installed at the point where the drain pipes enter the public sewer.

The trap itself should consist of a pipe that extends horizontally into the ground, and another pipe on top that runs vertically down into the ground. The horizontal pipe is placed under or near the flooring in order to prevent any grease or other materials from falling through it and into the sewer system. The vertical pipe is placed in such a way as to allow access for waste disposal systems such as garbage disposals, dishwashers, and washing machines.

What happens if you don’t have a trap?

If there is no trap installed under a sink, grease and waste will be flushed into the public sewer system. This can cause pollution, foul odors, and health risks.

If you are having a toilet installed in your home, the plumber will most likely install a trap under the toilet. This is because it is the most common place for grease and waste to be flushed into the sewer system.

READ MORE: What Is The Capacity Of A Kitchen Sink?

Do all drains need a trap?

The answer to this question is not simple. Some drains do not need a trap. For example, the sink drain and the kitchen drain do not require a trap because they are covered by the sink and the dishwasher.

But drains that are connected to the public sewer system need a trap. For example, sinks, bathtubs, showers, and washing machines do not need a trap installed in order to prevent sewer back-ups.

How often should you clean your traps?

You will need to clean your traps more often if you have pets or children in the home that may be using the drain regularly. You will also need to clean them more often if you have had blockages in your drains before.

How do you open a trap under the sink?

If your trap under the sink is not working properly and you need to open it, you can use a wrench to break the seal holding the two halves of the trap together. Then, you can use a broomstick or a stick to push open the two halves of the trap. You should always use a long-handled tool when opening a trap.

How far can a trap be from a drain?

According to the International Residential Code,

The distance between the sink drain and the entrance to the p-trap is 24 inches.

How long will it take to install a trap?

This depends on how busy your plumber’s schedule is. If your plumber has time and you have the money, he or she should be able to install a sink trap in about one day.

Why is it important to have a trap under a sink?

A sink trap should be installed under every sink in your home, as well as under the toilet. This is because sinks and toilets are the most common locations for grease and waste to be flushed into the public sewer system.

How deep is a sink trap?

The sink drain is typically at the bottom of a bathroom sink. The average counter height is 32 inches and the average depth of a sink is 8 inches.

Which is better: P trap or S trap?

P-traps are generally considered  better than s-traps. P-trap is more effective and consistent at preventing sewer back-up. A P-trap can be installed in a pipe without any need for any special tools. S-traps are more difficult to install than p-traps.

Does every P-trap need a vent?

P-trap needs a vent only if the pipe is very small, such as a 1/2 inch pipe.

Wrap up:

Hope you got a complete idea about sink traps. This detailed guide helps you  to understand the necessity of installing a sink trap. Now you can  make a  decision to install a sink trap in your home.

If you have any queries, feel free to ask us in the comment section below.

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About Author:

Danyal is a Freelance Copywriter that has been writing for online publications including Home improvement, newsworthy blogs and even a few personal blogs. He has a passion for writing and loves to share his knowledge with everyone who wants quality information.

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