How to Run Sewer Line

Tackling a plumbing project, such as running your own sewer line, can be intimidating and overwhelming. But it doesn’t have to be! With the right preparation and knowledge about how it works, you too can move forward with confidence when taking on this sizeable undertaking.

How to Run Sewer Line

In this blog post on how to run sewer line, we review the basics of what is involved in running a sewer line so you know what to expect each step of the way—from start to finish.

Needed Materials

Given below is a list of the materials you will need to make sure you have when running the sewer line:

  • A Tape Measure
  • Pvc Pipe (in Two Sizes—4” and 6”)
  • Pipe Cutter
  • Hacksaw
  • Cleanout Plugs
  • Primer and Solvent Cement
  • Cast Iron Soil Pipe (Optional)
  • Teflon Pipe Sealant (Optional)
  • Any Other Valves and Fittings Needed for the Job.

11 Step-by-step Guidelines on How to Run Sewer Line

Step 1: Planning the Route

The first step of running a sewer line is to plan your route. Take a look at the existing structure and landscape to identify where the pipe will need to go. You want your route to be as direct and efficient as possible.

It’s also important to check for any existing barriers that the pipe may need to pass through, such as driveways or sidewalks. It’s also important to make sure you are aware of any buildings, trees, or other obstacles in the way that could affect the route.

Step 2: Digging the Trench

Once you have a route mapped out, it’s time to start digging. The trench should be twice the width of your pipe and slightly deeper than the pipe itself. If you’re using cast iron soil pipe, your trench should be at least eight inches deep to accommodate it.

Using Cast Iron Soil Pipe

But, if you’re using PVC pipe, the trench only needs to be four inches deep. It’s important to make sure you dig deep enough so there is no risk of your pipe becoming blocked or clogged. You also want to make sure there is enough room for the pipe to move freely within the trench.

Step 3: Installing the Pipe

Once the trench is dug, it’s time to start installing the piping system. Start by placing 4-inch PVC pipes in the bottom of the trench and then connecting them with 6-inch PVC pipes.

When using cast iron soil pipe, connect it to the 4-inch PVC piping using a rubber boot and stainless steel band clamps. It’s important to make sure the pipe is level and secure before you continue. You can use a level to make sure the pipes are straight and secure them with hose clamps.

Step 4: Installing the Cleanout Plugs

When you’re finished running the sewer line, you’ll want to install cleanout plugs in the piping. This will allow you to easily access the line in case of a future clog or blockage, and it prevents any debris from entering the piping system. But be sure to use the right type of cleanout plug for your piping system. Case iron soil pipe requires special plugs that can handle the high pressure of cast iron.

Step 5: Securing the Pipe

It’s important to make sure that your pipe is securely fastened to prevent any movement or shifting over time. The 6-inch PVC pipes should be secured with straps every four feet.

The 4-inch pipes should have at least two straps per pipe, and the cast iron soil pipe should be strapped to the PVC piping using bands or straps as well. Although the straps may seem unnecessary, they will help ensure that your piping system is secure and safe.

Step 6: Priming and Cementing

Once all of your piping is in place, it’s time to add primer and solvent cement. This will ensure that your piping system is airtight and secure, preventing any seepage or leakage down the line. This is also an important step for ensuring that your piping system is safe for use.

Piping System is Airtight and Secure

But, make sure to use the right type of primer and solvent cement for your specific piping system. You can find out which type you need from the manufacturer. It’s also important to use the right amount of primer and solvent cement as too much or too little can cause problems down the line.

Step 7: Adding Seals and Gaskets

You may also want to consider adding seals and gaskets wherever two pieces of pipe connect for extra security. This will help prevent any water or waste from escaping from the pipes in the future.

It’s also important to use the right type of seals and gaskets for your piping system, as different materials require different sealing methods. You can find out more information about the right type of seals and gaskets for your piping system from the manufacturer. But, if you’re unsure, it’s best to consult a professional and have them inspect your system.

Step 8: Adding Valves and Fittings

If you need to connect any valves or fittings for your sewer line, now is the time to do so. Make sure that all of your connections are tight and secure before moving on. It’s also important to make sure that your piping system is properly pressure tested before you consider it complete.

You can purchase a pressure tester from your local hardware store, or you can rent one from a plumbing supply company. But, again, if you’re unsure it’s best to consult a professional.

Step 9: Backfilling the Trench

Once all of your piping and fittings are in place, you can start backfilling the trench. Use the dirt that was dug out of the trench and fill it in until it is level with the ground around it.

But, be sure to keep track of any valves or fittings in the trench and make sure they are above the level of dirt being filled in. Once the backfilling is complete, you’re almost done running your sewer line! It’s important to make sure that your route is clear before you start using the line, so be sure to check for any obstructions in the way.

Step 10: Testing Your Sewer Line

To ensure everything is being routed correctly, test your sewer line by running water through it for a few minutes. Make sure that all of the connections are secure and that there are no leaks or blockages.

Test Your Sewer Line by Running Water

Otherwise, you may need to make adjustments or repairs to the line before it is ready for use. If everything looks and works as it should, then congratulations! You’ve successfully run a sewer line.

Step 11: Connecting to Existing Lines

The last step in running a sewer line is to connect it to the existing plumbing system. This can be done by cutting into an existing sewer line, using a Y-fitting, or connecting directly to a septic tank.

Make sure that all of the connections are secure and properly sealed before continuing. But, if you’re unsure how to make these connections, it’s best to consult a professional and have them inspect your system.

Following the above guidelines on how to run sewer line will help you achieve your plumbing project with success! With the right preparation and knowledge, running your own sewer line doesn’t have to be intimidating or overwhelming. Good luck!

What to Keep in Mind When Running Sewer Line:

When running a sewer line, it’s important to keep several key points in mind. Make sure you have all of the necessary materials and tools before beginning your project, and be sure to plan out a route that is direct and efficient. It’s also important to make sure that all of your connections are secure and properly sealed to prevent any leaking or blockages down the line.

Finally, always test the system before closing up the trench to make sure it is running correctly. Following these guidelines will help you get the job done right!

Frequently Asked Questions

Q1: What Type of Piping Should I Use When Running a Sewer Line?

A1: PVC pipe is the most commonly used piping for sewer lines and comes in two sizes—4” and 6”. You may also want to consider using cast iron soil pipe, which requires an 8-inch trench depth.

Q2: How Deep Should I Dig the Trench?

A2: The trench should be dug to a depth that is slightly deeper than the pipe itself. For PVC piping, this will typically be around six inches deep. If you’re using cast iron soil pipe, your trench should be at least eight inches deep.

Q3: What Kind of Cleanout Plugs Should I Use?

A3: When installing cleanout plugs in your sewer line, it’s important to make sure they are the right size for your piping. PVC pipes will usually require a 3-inch cleanout plug, while cast iron soil pipe will need a 4-inch plug.

Cleanout Plugs in Your Sewer Line

Q4: How Long Does It Take to Install a Sewer Line?

A4: The time it takes to install a sewer line will depend on a few factors, such as the size of your project and the complexity of the routing. On average, it should take no more than one or two days for a typical project.

Conclusion

In conclusion, by taking the steps discussed throughout this blog post, you now know what to expect when installing a sewer line for your new building: research the local permitting requirements, contact an experienced plumber or contractor to look at the project and break down all of the costs for materials and labor.

You’ll be glad you did the homework and that you followed these helpful steps when it comes to running sewer lines!

Now get out there and put your knowledge into practice so that your project can start progressing quickly! Plus, with a bit of knowledge already under your belt, you’ll be able to spot potential issues before they arise and take corrective measures—keeping both time and money in mind. Thanks for reading – good luck with your project! Thanks for reading this article on how to run sewer line.

Photo of author

Terry Alexander

Hi, I am Terry. I started my professional life as a handyman and did a lot of external and internal repair of home and plumbing support. From my childhood, my passion for home repair and fixtures created an opportuinity to pursue a career in HVAC and plumbing industry. As I gained years of knowledge and my love for plumbing grew overtime, I thought to document my journey so that I could help others who ran into daily problems in their home repair. Hopefully it will help you fix those pesky home repair and plumbing problems that always seem to happen at the worst time possible!

Leave a Comment