Product Tour
What's New
Start Now
For Windows For Mac For Linux

Plumbing Diagram

> Edraw Diagram > Plumbing Diagram
Posted by Janice | 04/23/2021

Part 1: What is a Plumbing Diagram

A plumbing diagram is a visual representation of the layout of the pipelines that are responsible for the continuous water supply at different places in an entirely constructed building. Because most water pipes are concealed within the walls or laid underground nowadays to make sure that the premise looks clean, it is imperative to have a plumbing and piping diagram prepared beforehand and be referred to and followed while preparing the structure of the house.

Part 2: Purpose and Benefit of Plumbing Diagram

The purpose of a plumbing diagram is to make sure that the house/building gets continuous and regular water supply wherever needed without any leakage or overflow. An efficient drawing is required to help the designers develop the blueprint of a house, keeping the water and sewer pipes in mind. The diagram even makes sure that there is a proper drainage system in the place so that the outflow of the used water is not obstructed.

The significant advantage of a well-created plumbing diagram is that it helps the architects construct a building that has no unwanted pipes visible in the rooms or other living areas. A plumbing diagram also ensures that the water outlets such as the taps and showers are easily accessible, and the flow of water remains continuous.

Part 3: Plumbing Diagram Symbols

Some of the industry-standard symbols that are recognized and accepted globally are illustrated in the following images:



Part 4: How to Read Plumbing Diagram

Because the pipes are mostly concealed within the walls or are laid underground, it is imperative to prepare a plumbing diagram reflecting the walls as transparent elements. A good designer or architect would then be able to read and refer to such a map in a way that the pipes would get appropriately aligned to the walls they need to be concealed in.

As for the underground piping system, the diagram must show other essential elements such as sewer and municipal water lines clearly, and the architect/designer must use those symbols as a reference while putting your pipes without obstructing them.

Part 5: What to Do Before Creating Plumbing Diagram?

A few things that are essential and require your attention before you start creating a plumbing diagram include:

• Important Rooms

Make sure to decide where the important rooms where the water supply is needed are to be constructed in the house. For instance, you must know where your bathroom(s), kitchen, and washbasin should be. If you need a separate laundering area, you must know where it needs to be constructed. This will help the designers lay the main pipelines (backbones) to those places.

• Water Outlets

After identifying the rooms where water is needed, it is now time to define the exact places you want to install the outlets such as the taps, showers, geyser inputs, etc.

• Scalability

Along with the current requirements of the outlets, it is also essential to see how you would want to expand the piping system in the future. This would help you when you want to extend your house or upgrade the pipes. For example, make sure to leave some openings unused, and the water supply blocked in them using the stoppers. This would come in handy when you want to install some other equipment in the bathroom or construct a new room altogether where the supply is needed.

• Be Smart While Drawing

Instead of using a manual approach, it is strongly suggested to use an efficient PC program like EdrawMax developed by Wondershare to draw an efficient plumbing diagram. Doing so not only expedites the entire creation process but also ensures that the correct symbols are used and there are no glitches in the illustration post its completion.

Part 6: How to Make Plumbing Diagram in EdrawMax?

Using EdrawMax to create a plumbing diagram is pretty simple because of the built-in templates and libraries populated with industry-standard shapes and symbols. You can follow the instructions given below to draw a plumbing and piping diagram using Wondershare EdrawMax:

Step 1: Select and Open a Template

On the main window of EdrawMax, ensure that New is selected in the left pane and click Building Plan from the center. Select Plumbing and Piping Plan from the upper section of the right window, and then click the available template from the lower section to open it on the Canvas.

Note: Although you can click the block with the + sign to start creating a diagram from scratch, doing so would take a significant amount of time to draw merely the basic structure of the plan. Therefore, starting with a template and then modifying it according to your requirement would be your best bet.


Step 2: Modify the Template

Double-click a shape on the Canvas and edit its caption as needed. Repeat this process for all the icons in the diagram if required. If need be, drag more shapes from the libraries on the left, and place them on the Canvas. After this, you can use the tools present in the right pane to decorate the symbols to be uniquely identified in the plumbing diagram.

Step 3: Save the Diagram and Export

Once the diagram is complete, click the Save icon from the quick access toolbar at the top-left corner of the interface. Next, click the More button on the Export icon, and choose your preferred format for exporting.



All-in-One Diagram Software
Create more than 280 types of diagrams effortlessly
Start diagramming with various templates and symbols easily
  • Superior file compatibility: Import and export drawings to various file formats, such as Visio
  • Cross-platform supported (Windows, Mac, Linux, Web)
Security Verified | Switch to Mac >>
Security Verified | Switch to Linux >>
Security Verified | Switch to Windows >>
  • Learn How to Create a Plumbing and Piping Plan
  • Part 7: Tips for Making Plumbing Diagram

    A few essential tips that might be helpful while creating a plumbing diagram are discussed below:

    • Use correct symbols and shapes to avoid any confusion among the architects and designers.
    • Assess and measure the walls carefully to come up with a precise plumbing system post-implementation
    • Do not install too many outlets to avoid any congestion in the plan as well as in the building itself.
    • Make the plan clean and add the correct captions.
    • Always remember to use the arrows to demonstrate the right direction of the flow of water.

    Part 8: A Plumbing Diagram Example


    The above image shows a generic plumbing plan with the required pipelines and the outlets used in a building for continuous water supply. The drainage system drains out all the wastewater out of the building. The overall incoming and distribution of water supply and drainage method illustrated in the diagram would help the occupants get a continuous flow of the clean water after implementation.

    Part 9: Conclusion

    A well-prepared plumbing diagram is beneficial not only for the architects and designers during construction but it is also helpful for the people who will use the premise to get a regular flow of water supply after it is complete. Therefore, it is imperative to draw a perfect plan clearly showing the plumbing system. For the process, using an efficient diagramming tool such as Wondershare EdrawMax would be highly recommended to gain access to and place the correct symbols and icons that could be read and recognized by everyone for easy implementation of the plan.

    Get Started! You Will Love This Easy-To-Use Diagram Software

    EdrawMax is an advanced all-in-one diagramming tool for creating professional flowcharts, org charts, mind maps, network diagrams, UML diagrams, floor plans, electrical diagrams, science illustrations, and more. Just try it, you will love it!