How To Build A Sewer Invert

A sewer invert is the bottom of a sewer pipe. It is important to build a strong and level sewer invert so that the sewer will function properly and not cause water or sewage to back up into your home or business.There are several ways to build a sewer invert, depending on the materials you have available. You can use concrete, asphalt, or bricks to create a solid foundation for your sewer pipe.

How To Build A Sewer Invert

There is no one-size-fits-all answer to this question, as the method for building a sewer invert will vary depending on the specific site conditions and project requirements. However, some tips on how to build a sewer invert include: 1. Locate the sewer line invert elevation on the project site plan. 2. Excavate a trench that is wide and deep enough to accommodate the sewer line and any associated fittings or manholes.

– Shovel – Wheelbarrow – Rake – Level – String or Tape Measure – Chisel – Hammer – Carpenter’s Square

  • Fill in
  • Lay a layer of crushed stone in the bottom of the trench
  • Dig a trench the desired width and depth of the sewer invert
  • Place precast concrete sewer invert segments on top of the crushed stone

-What type of soil is best for a sewer invert? -How deep should the sewer invert be? -What type of pipe should be used for the sewer invert?

Frequently Asked Questions

How Do You Calculate The Invert Level Of A Sewer?

Invert levels of sewers are typically measured using a manhole or sewer cover as the datum point. The elevation of the invert of the sewer is then measured from this point.

What Is A Sewer Invert?

A sewer invert is the bottom of a sewer pipe. It is typically made of concrete or clay and is designed to support the weight of the soil and waste that will be passing through it.

How Do You Measure An Invert?

There is no single answer to this question as there are a variety of ways to measure an invert. Some common methods include using a refractometer, hydrometer, or density meter.


Building a sewer invert requires careful excavation and precise measurements. The invert should be smooth and level, to ensure proper drainage.

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