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How to Replace an RV Toilet: A Step-by-Step Guide

Are you a proud owner of an RV?

If so, you understand the importance of maintaining its various components, including the toilet.

Over time, an RV toilet may start to show signs of wear and tear, necessitating a replacement.

In this comprehensive guide, we will walk you through the process of replacing your RV toilet.

Whether you’re a seasoned RV enthusiast or a newbie, this step-by-step guide will help you navigate the task with ease.

So let’s dive in and learn how to replace an RV toilet!

How to Replace an RV Toilet: A Step-by-Step Guide

Gather the Necessary Tools and Materials

Before embarking on the task of replacing your RV toilet, it’s crucial to gather all the required tools and materials.

Here’s a list of what you’ll need:

  • Wrench or pliers
  • Screwdriver
  • New RV toilet
  • Wax ring
  • Bowl cleaner
  • Gloves
  • Towels
  • Bucket

Turn Off the Water Supply

The first step in replacing your RV toilet is to turn off the water supply.

Locate the shut-off valve near the toilet and turn it clockwise to stop the water flow.

This prevents any accidental leaks or spills during the replacement process.

Empty the Water from the Toilet Bowl

To avoid any mess, it’s essential to empty the water from the toilet bowl before removing it.

Using a bucket, carefully scoop out the water and dispose of it in a proper waste receptacle.

Wearing gloves during this step is advisable for hygiene purposes.

Disconnect the Water Supply Line

Next, you need to disconnect the water supply line connected to the toilet.

Using a wrench or pliers, loosen the connection and carefully remove the line.

Place a towel underneath to catch any drips.

Remove the Nuts or Bolts Securing the Toilet

To remove the toilet from its position, locate the nuts or bolts securing it to the floor.

Typically, there are two to four nuts or bolts, depending on the toilet model.

Use a wrench or screwdriver to loosen and remove them.

Lift and Remove the Old Toilet

With the nuts or bolts removed, it’s time to lift the old toilet off the floor.

Be cautious as you lift, as RV toilets can be heavy.

Set it aside carefully.

Clean the Toilet Flange

The toilet flange is the connection point between the toilet and the waste pipe.

It’s crucial to clean this area thoroughly before installing the new toilet.

Use a bowl cleaner and a brush to remove any debris or residue from the flange.

Install the Wax Ring

The wax ring provides a watertight seal between the toilet flange and the new toilet.

Place the wax ring on the flange, ensuring it is centered and aligned properly.

Position and Secure the New Toilet

Now comes the exciting part: installing the new RV toilet.

Carefully position the toilet over the wax ring and align it with the bolts or nuts on the floor.

Gently press down to secure the toilet in place.

Reattach the Nuts or Bolts

Using a wrench or screwdriver, reattach the nuts or bolts to secure the new toilet firmly.

Make sure not to overtighten, as it may damage the toilet or the flange.

Reconnect the Water Supply Line

With the toilet securely in place, it’s time to reconnect the water supply line.

Attach the line to the corresponding connection on the bottom of the toilet and tighten it using a wrench or pliers.

Double-check for any leaks before proceeding.

Turn On the Water Supply

Now that everything is in place, it’s time to turn on the water supply.

Slowly open the shut-off valve to allow water to flow into the toilet.

Check for any leaks and make sure the water fills the bowl properly.

Test the Flushing Mechanism

To ensure everything is working correctly, test the flushing mechanism of the new RV toilet.

Flush several times and observe the water flow and drainage.

If everything is functioning as expected, you’re good to go!


How often should I replace my RV toilet?

The lifespan of an RV toilet can vary depending on factors such as usage and maintenance. However, on average, it’s recommended to consider a replacement every 5-7 years to ensure optimal performance and hygiene.

Can I replace my RV toilet myself, or should I hire a professional?

Replacing an RV toilet is a task that can be accomplished by most RV owners with basic DIY skills. However, if you’re unsure or uncomfortable with the process, it’s always a good idea to seek professional assistance to avoid any potential issues.

Are all RV toilets the same size?

No, RV toilets come in different sizes and shapes. When purchasing a new toilet, make sure to check the dimensions and compatibility with your RV’s existing toilet flange.

What should I do if I encounter a leak after replacing my RV toilet?

If you notice a leak after replacing your RV toilet, the first step is to identify the source. Check the connections, wax ring, and water supply line for any signs of leakage. Tighten any loose connections or replace faulty components as necessary.

Can I use household toilet cleaners on my RV toilet?

It’s important to use RV-specific toilet cleaners to maintain and clean your RV toilet. Household toilet cleaners may contain chemicals that can damage the seals and components of an RV toilet.

How do I dispose of the old RV toilet?

When disposing of the old RV toilet, it’s essential to follow local regulations and guidelines for waste disposal. Check with your local waste management authority to ensure proper disposal methods are followed.


Replacing an RV toilet may seem like a daunting task, but with the right guidance, it can be a manageable DIY project.

By following the step-by-step guide outlined in this article, you can confidently replace your RV toilet and ensure a clean and functional bathroom in your recreational vehicle.

Remember to gather all the necessary tools and materials, follow proper installation procedures, and seek professional help if needed.

With a new RV toilet in place, you can continue to enjoy your adventures on the road with peace of mind.