Septic Tank Reinforcement Detail


Fully detailed CAD drawing with walls and slab reinforcement detailing for a typical septic tank together with sizing table.

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Septic Tank Reinforcement Detail

A sewage septic tank is a water tight tank, typically underground, in which sewage is collected and allowed to decompose through bacterial activity before draining by means of a soak away. This is a CAD dwg typical reinforced concrete septic tank reinforcement detail.

Definition of a septic tank

A septic tank consists of one or more concrete or plastic tanks of between 4000 and 7500 liters (1,000 and 2,000 gallons); one end is connected to an inlet wastewater pipe and the other to a septic drain field. Generally these pipe connections are made with a T pipe, allowing liquid to enter and exit without disturbing any crust on the surface. Today, the design of the tank usually incorporates two chambers, each equipped with a manhole cover, and separated by a dividing wall with openings located about midway between the floor and roof of the tank.

Wastewater enters the first chamber of the tank, allowing solids to settle and scum to float. The settled solids are anaerobically digested, reducing the volume of solids. The liquid component flows through the dividing wall into the second chamber, where further settlement takes place. The excess liquid, now in a relatively clear condition, then drains from the outlet into the septic drain field, also referred to as a leach field, drain field or seepage field, depending upon locality. A percolation test is required prior to installation to ensure the porosity of the soil is adequate to serve as a drain field.

Source : Septic Tank [ wikipedia ]

Fully Detailed Apative Structural Drawing

This structural reinforcement detail is completely generic and adaptive to any size for any project. All dimensions are in the form of an annotation which together with the included sizing table can be simply plugged in to any design project.

The drawing includes full details of all reinforcement re-bars for the foundation, retaining walls, interior wall separators, wall openings and complete top slab reinforcement with slab access openings.

Septic Tank Reinforcement Detail

Tank sizing table

In this detailed drawing, dimensioning of such septic tanks is illustrated in the form of a table, based on the usability capacity per building. This is a ready to go detail, as is, with minor re-adjustment needed for each project. A must have for every engineer with residential projects.

Use with any project

  • CAD .dwg file: The industry-standard CAD file format that offers compatibility with a wide range of design software.
  • CAD .dxf file: An additional file format to enhance flexibility and convenience.
  • PDF: A comprehensive PDF document providing clear visual representation and ease of reference.
  • Unlimited Use: Enjoy the freedom to utilize this detail in countless projects without limitations.
  • Unlocked and Fully Customizable: Tailor the design to meet your specific requirements effortlessly.

Includes septic tank top plan view

Also included is a top plan view of the tank top cover slab with full dimensions and slab reinforcement.

Save time with any project

Can be used by any engineer, architect, or construction professional working with steel frame designs.

By utilizing this drawing, you can save time and ensure accuracy in your designs, while also ensuring that your project meets the highest industry standards. With its clear and concise format, this drawing is easy to use and understand, making it a valuable tool for any construction project.

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Septic Tank Reinforcement Detail

Septic Tank Reinforcement Detail

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Additional information


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INSTANT DOWNLOAD ACCESS – zip file containing : CAD dwg, dxf & pdf formats.


For reference purposes


Product image above is a demo low resolution snapshot for presentation purposes. Purchased content is fully customizable full resolution CAD drawing. Any 3D illustrations are not included


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