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How to Hard Pipe My RV Sewer Line

Are you tired of dealing with the hassle of traditional RV sewer hoses?

Are you looking for a more efficient and permanent solution?

If so, you’ve come to the right place!

In this article, we will explore the topic of how to hard pipe your RV sewer line.

By the end, you’ll have all the knowledge and guidance you need to upgrade your RV’s sewer system and make your camping trips a breeze.

How to Hard Pipe My RV Sewer Line: The Basics

What is Hard Piping for RV Sewer Lines?

Hard piping refers to the process of replacing flexible hoses with rigid pipes to create a permanent and reliable sewer system in your RV.

Unlike traditional hoses, hard pipes are made of durable materials such as PVC or ABS, which provide better stability and prevent leaks.

This upgrade offers numerous benefits, including improved flow, reduced maintenance, and enhanced overall sanitation.

Why Should You Consider Hard Piping?

Hard piping your RV sewer line has several advantages over using conventional hoses.

Let’s take a closer look at the benefits:

  1. Durability: Flexible hoses are prone to wear and tear, while hard pipes offer greater longevity. They are less likely to develop cracks, leaks, or punctures, ensuring a more reliable and long-lasting sewer system.
  2. Enhanced Flow: Hard pipes provide a smoother interior surface, minimizing obstructions and allowing waste to flow freely. This results in improved drainage efficiency and reduces the risk of clogs and backups.
  3. Convenience and Ease of Use: Once you install hard pipes, you’ll no longer need to hassle with connecting and disconnecting hoses at each campsite. The permanent nature of hard piping simplifies the process and saves you valuable time and effort.
  4. Odor Prevention: Hard pipes are better at containing odors compared to flexible hoses. With a secure and airtight sewer system, you can enjoy a more pleasant camping experience without unpleasant smells.

Now that you understand the benefits, let’s dive into the step-by-step process of hard piping your RV sewer line.

Step-by-Step Guide: How to Hard Pipe My RV Sewer Line

1. Gather the Necessary Materials

Before you begin, make sure you have all the required materials and tools.

Here’s a checklist to help you get started:

  • PVC or ABS pipes (appropriate length and diameter)
  • Pipe fittings (elbows, couplings, adapters, etc.)
  • Pipe glue or solvent cement
  • Pipe cutter or hacksaw
  • Measuring tape
  • Marker or pencil
  • Safety gloves and goggles

2. Plan Your Layout

Start by planning the layout of your hard pipe system.

Measure the distance from your RV’s sewer outlet to the desired endpoint.

Take into account any obstacles or existing structures that may affect the pipe’s path.

Sketch a rough diagram to visualize the layout and ensure a smooth installation process.

3. Remove Existing Flexible Hose

Carefully detach the existing flexible hose from your RV’s sewer outlet.

Wear safety gloves and dispose of the hose properly.

Inspect the connection point for any residue or debris that may hinder the installation of the hard pipe.

4. Cut and Assemble the Hard Pipe Sections

Using a pipe cutter or hacksaw, cut the PVC or ABS pipes according to the measurements from your layout plan.

Ensure precise cuts to ensure proper fitment.

Next, assemble the pipe sections using the appropriate fittings such as elbows, couplings, or adapters.

Dry-fit the components first to confirm the accuracy of your measurements.

5. Glue and Secure the Pipes

Once you’re satisfied with the dry-fit, disassemble the pipe sections and apply pipe glue or solvent cement to the ends of the pipes and fittings.

Follow the manufacturer’s instructions for proper application.

Assemble the pipes and fittings, making sure they align correctly.

Hold the components firmly for a few seconds to allow the glue to set.

6. Connect to the RV and Endpoint

Attach one end of the hard pipe system to your RV’s sewer outlet, ensuring a tight and secure connection.

Use appropriate fittings or adapters if necessary.

Similarly, connect the other end of the hard pipe system to the desired endpoint, whether it’s a sewer connection at a campsite or a dedicated RV dumping station.

7. Test for Leaks

Before using your newly installed hard pipe system, it’s crucial to test it for leaks.

Pour a small amount of water down the RV’s toilet or sink drain and observe the connections for any signs of leakage.

If you notice any leaks, disassemble the affected area, clean it thoroughly, and reapply glue or solvent cement before reassembling.


Is hard piping my RV sewer line a DIY project?

Yes, hard piping your RV sewer line is a project that can be done by most DIY enthusiasts. However, it does require some basic plumbing skills and knowledge. If you’re unsure or uncomfortable with the process, it’s best to consult a professional.

What type of pipes should I use for hard piping my RV sewer line?

The most commonly used pipes for hard piping RV sewer lines are PVC (polyvinyl chloride) and ABS (acrylonitrile butadiene styrene). Both materials are durable, lightweight, and resistant to corrosion, making them ideal for RV applications.

Can I still use my RV’s flexible hose as a backup?

Absolutely! It’s always a good idea to have a backup option in case of emergencies or unforeseen circumstances. Keep your flexible hose stored in your RV and use it when necessary.

Will hard piping my RV sewer line affect my warranty?

It’s important to consult your RV manufacturer or check your warranty documentation to determine if hard piping your sewer line will affect your warranty. While many manufacturers do not explicitly prohibit hard piping, it’s always best to confirm beforehand.

Can I paint the exposed pipes for aesthetic purposes?

Yes, you can paint the exposed hard pipes using appropriate paint for PVC or ABS materials. This allows you to match the color scheme of your RV or blend the pipes with the surroundings.

Are there any maintenance requirements for hard pipe systems?

Hard pipe systems generally require less maintenance compared to flexible hoses. However, it’s advisable to inspect the pipes periodically for any signs of damage or leaks. Regular cleaning and sanitizing of the system are also recommended.


Congratulations! You have now learned how to hard pipe your RV sewer line.

By following the step-by-step guide and considering the benefits of hard piping, you can enjoy a more efficient and hassle-free camping experience.

Remember to gather the necessary materials, plan your layout, and ensure proper assembly and testing.

If in doubt, consult a professional to ensure a successful installation.

Happy camping!