Installation and configuration of piping is a crucial part of any kitchen plumbing job. Proper piping allows for efficient drainage and prevents clogs. It also makes it easier to operate both sink basins. We will cover a detailed guide on how to pipe a double kitchen basin in this blog.

Our goal is to help homeowners navigate the kitchen sink installation process successfully.

The Types of Double Sink Configurations

  • The “Dual Drain”, as well as the “Single Drain”, are two common plumbing configurations for double kitchen sinks.
  • Highlight the benefits and considerations associated with each configuration. For example, individual drainlines, shared drainlines, and disposal unit compatibility.

The Piping Layout:

  • Planning the layout for a double-sink kitchen sink is based on factors such as location of sink, space constraints, and local codes.
  • Talk about the importance of measuring and marking sink cutouts accurately on the counter to ensure correct alignment with the drain and the supply lines.

Installing Drain Lines

  • The process of installing drain lines in a double kitchen basin, including connecting sink basins to main drainpipes and adding P-trap assemblies.
  • This video offers tips for aligning and securing drain lines correctly to ensure that water flows smoothly and prevents leaks.

Connecting Supply Lines

  • Discussion of the installation and supply lines that will provide hot water and cold to the double kitchen sink.
  • Advice on choosing the correct materials, like flexible braided tubes or copper pipes, as well as ensuring the proper connection to the water supply.

Addition of Garbage Disposal Units:

  • Investigate the possibility of installing a garbage disposer in one or more sink basins.
  • The steps to connect the disposal system to the drain, including the installation of a disposal flange as well as the connection of the discharge pipe.

Addressing Common Challenges:

  • Our team can provide solutions to the most common challenges that arise during the piping process. These include dealing with a limited amount of space under the sink or adapting the plumbing to the existing setup.

Ensuring Proper Ventilation:

  • It is essential to maintain proper ventilation of the plumbing system for the double sink in order to avoid odors and guarantee efficient drainage.
  • Discuss the installation of an air admittance or vent pipe to maintain a proper air pressure within the system.

Testing and Inspection

  • Advise homeowners to thoroughly check the newly installed pipe system by running both sink basins with water and looking for any drainage or leaks.
  • Recommending that a plumber perform a final check to ensure compliance of local plumbing codes.


The correct piping is essential for an efficient drain and a functional space in the kitchen. Understanding the different plumbing layouts, carefully planning the layout and installing the drain and water supply lines are all necessary to complete the task. In addition, adding a garbage disposer unit and making sure that the ventilation is correct will enhance the convenience and functionality of your kitchen sink.

In order to have a plumbing system that is free of leaks and functions properly, it is essential to deal with any issues that may arise during installation. Consult a plumber if you have any doubts or are dealing with complicated plumbing issues. Following the tips and tricks in this guide can help homeowners tackle the job of installing a double sink in their kitchen and create an aesthetically pleasing and practical kitchen.