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Key Takeaways

  • Proper toilet installation enhances RV hygiene and comfort.
  • Knowing when to replace an RV toilet is essential.
  • The selection of the right model is tailored to individual needs.

Are you ready to upgrade your RV with a fresh toilet? Let's dive into the essentials of properly replacing your RV's toilet.

To properly replace a toilet in an RV, turn off the water, remove the old toilet, inspect and repair the flange, install a new toilet with a wax ring, secure it with bolts, reconnect the water supply, test for leaks, apply the caulk around the base, dispose of old toilet, and finalize inspection.

With over a decade of hands-on experience in RV maintenance, I bring expert insights and practical advice to guide you through replacing your RV toilet effortlessly. Let's tackle this task together, drawing from my wealth of firsthand knowledge and expert opinions. Trust in my expertise for a smooth and successful upgrade to your RV bathroom.



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

Replacing the toilet in your RV isn't just about maintaining necessities and comfort; it's also about ensuring a hygienic living space while on the road.

Most RV enthusiasts will encounter the need for a toilet replacement at some point due to wear and tear, leakage, or an upgrade for better functionality.

Understanding the right approach to replace an RV toilet will save you time, help avoid potential issues, and may even enhance your overall RV experience.

Identifying when a replacement is necessary is your starting point. If your RV toilet is leaking, has a crack, or simply does not function efficiently, it may be high time to consider a new installation.

Furthermore, if you've inherited an RV, you might want to start fresh with a toilet more suited to your needs. With diverse options available in the market, from gravity-flush to composting models, selecting the best RV toilet model that suits your lifestyle is crucial.

When it comes to maintaining your RV, replacing a toilet is an essential task that can improve your traveling comfort. You'll need some basic tools, a new toilet designed for RV use, and a methodical approach to ensure everything is installed correctly and hygienically.

Turn Off The Water And Disconnect Supply

Before you start the toilet removal process, make sure the water pump is turned off, and disconnect the RV from any external water sources.

Then, find the shut-off valve behind the toilet to stop the flow of water, and disconnect the water supply line using an adjustable wrench. Ensure to drain all remaining water from the toilet to prevent spills.

Materials Needed


  • Locate the water shut-off valve.
  • Turn off the water supply.
  • Flush the toilet to drain excess water.
  • Disconnect the water supply line.
  • Remove bolts securing the toilet.
  • Lift the toilet and set aside.

Remove Old Toilet And Bolts

Lift the toilet seat, and locate the mounting bolts that secure the toilet to the floor. Using a wrench or a screwdriver, remove bolts.

You might need to apply some penetrating oil to loosen them if they are corroded. Gently rock the toilet back and forth to break the seal and lift the toilet away from the floor flange.

Materials needed


  • Turn off the water supply.
  • Disconnect the water line.
  • Remove bolts.
  • Lift the old toilet and place it in the bucket.
  • Clean the area thoroughly.

Inspect And Repair Flange

Now that you have the old toilet removed, inspect the flange for any signs of wear or damage. If the flange is cracked or broken, it will need to be replaced or repaired before you can proceed with the installation of the new toilet.

Materials needed


  • Turn off the water supply.
  • Remove the old toilet.
  • Inspect the flange for damage.
  • Repair the flange if necessary.
  • Clean flange area.
  • Install new wax ring.
  • Position new toilet.
  • Secure the toilet with bolts.
  • Reconnect water supply.
  • Test for leaks.

Install New Toilet With Wax Ring

Place the new wax ring on the flange to create a tight seal and prevent leaks. Carefully align the new toilet over the flange and wax ring, and lower it into place to ensure a proper fit. Press down to set the seal.


  • New toilet
  • Wax ring
  • Adjustable wrench
  • Screwdriver
  • Level


  • Shut off the water supply.
  • Remove the old toilet.
  • Install wax ring.
  • Position new toilet.
  • Secure bolts & connections.
  • Test for leaks.
  • Reconnect water supply.

Secure the Toilet With Bolts

Attach the nuts to the mounting bolts — hand-tightening first to ensure proper positioning. Once the toilet is correctly positioned, securely tighten the nuts with the wrench but be careful not to over-tighten and crack the toilet base.

Materials needed


  • Position the new toilet over the flange.
  • Align bolt holes.
  • Insert bolts and tighten.
  • Ensure the toilet is secure.
  • Test for stability.

Reconnect Water Supply

Reattach the water supply line to the toilet's water valve, using plumber’s tape if necessary to prevent leaks. Hand-tighten the nut to secure the water line and then give an additional snug turn with the wrench.

Materials needed


  • Shut off the water supply.
  • Disconnect the old toilet.
  • Apply Teflon tape to new connections.
  • Install new toilet.
  • Reconnect water supply.

Test For Leaks

Turn the water pump back on and wait for the system to pressurize. Flush the toilet several times, checking for leaks around the base, water line, and valve. No water should be escaping.

Materials Needed


  • Drop leak detection tablets in the toilet tank.
  • Wait for a few minutes.
  • Check for any color changes in the water, indicating leaks.
  • If leaks are detected, tighten connections or replace faulty parts.

Apply Caulk Around the Base

Using a silicone sealant, apply caulk around the base of the toilet to secure it in place and prevent any movement or leaks. Ensure the caulk is smoothed evenly for both appearance and function.

Materials Needed


  • Clean the area around the base.
  • Load caulk into the gun.
  • Apply caulk evenly around the base.
  • Smooth with a finger or caulk tool.
  • Let dry completely.

Dispose Of Old Toilet

Proper disposal of your old toilet is crucial. Contact local waste management services for advice on disposal regulations in your area to ensure an environmentally friendly approach.

Final Inspection

Conduct a thorough check to ensure the toilet is secure and the area is clean. Verify there are no leaks and that the toilet functions as expected. Your new RV toilet is now ready for use.

Replacing an RV toilet may seem daunting, but with the right tools and step-by-step instructions, the process is manageable and can greatly improve your RV experience.

Types Of Best RV Toilet Models

When you're on the road in your RV, comfort and convenience are key, and the right toilet can make all the difference. Below, I'll showcase some of the top picks for keeping your travel trailer's bathroom both functional and comfortable.

Thetford Aqua-Magic V RV Toilet

If you're looking for a reliable and easy-to-use RV toilet, the Thetford Aqua-Magic V might just be your match. It's a gravity-flush toilet, popular among RV enthusiasts for its simplicity and effectiveness.

Key Features:

  • Lightweight build for easy installation
  • Single-hand flush system


Specification Detail
Type Gravity-Flush Toilet
Material Plastic
Flush Type Pedal Flush
Color Options Available in white or bone

Dometic 320 Series RV Toilet

For those who prefer a more home-like feel, the Dometic 320 Series presents an elegant solution. Its full-size ceramic bowl and wooden seat offer increased comfort and durability.

Key Features:

  • Full-size elongated ceramic bowl
  • Ergonomic foot pedal for easy flush control

Specifications List:

  • Type: Gravity-Flush Toilet
  • Material: Ceramic
  • Weight: 36.5 lbs
  • Style: Residential

Nature's Head Self-Contained Composting Toilet

Conscious about the environment as an RV owner? The Nature's Head Self-Contained Composting Toilet is an eco-friendly alternative, turning your waste into compost without the need for water or chemicals.


  • Waterless operation
  • Easy to clean and maintain


  • Higher initial investment
  • Requires regular emptying of compost material

Specifications Table:

Specification Detail
Type Composting Toilet
Material Stainless Steel and Plastic
Weight 27.2 lbs
Capacity 60-80 uses

Toto Travel Washlet Portable Bidet Toilet

If you're someone who values hygiene and luxury even on the go, consider the Toto Travel Washlet. This compact device offers the refreshing cleanness of a bidet wherever your travels take you.


  • Enhances cleanliness
  • Portable and easy to use


  • Requires periodic charging
  • Not a standalone toilet; requires pairing with a compatible toilet model

Camco Standard Portable Travel Toilet

The Camco Standard Portable Travel Toilet is designed for those who want an affordable and functional travel toilet. Perfect for smaller RVs or as a backup toilet, this portable model is both practical and user-friendly.

Key Features:

  • 5.3-gallon holding tank
  • The sealing slide valve locks in odors and protects against leakage

Specifications List:

  • Type: Portable Travel Toilet
  • Material: Polyethylene
  • Weight: 11.5 lbs empty
  • Capacity: 5.3-gallon holding tank

Choosing the right RV toilet is about understanding your needs, preferences, and the size and style of your RV.

Whether you go for the classic design of the Thetford, the residential feel of the Dometic, the eco-friendly Nature's Head composting model, the high-tech Toto bidet, or the versatile Camco portable, there’s an option tailored just for you.

Remember to consider the weight, anti-microbial features, and ease of use of these toilets to find the best fit for your RV lifestyle.

Frequently Asked Questions

When you're out on the road with your RV, having a reliable toilet is essential. Knowing when and how to replace it is just as important to ensure you have a hassle-free journey. Let's navigate through some of the burning questions you might have regarding RV toilet replacement.

What are the signs that indicate it's time to replace my RV toilet?

If you notice leaks, cracks, or persistent odors that won't go away even after cleaning and maintenance, it might signal that your RV toilet needs replacing. Another tell-tale sign is difficulty in flushing or if the toilet doesn't hold water in the bowl as it should.

Is it possible to upgrade my RV toilet to a porcelain model, and if so, how?

Yes, upgrading to a porcelain toilet can be a luxurious improvement for your RV bathroom. To install a porcelain model:

  1. Ensure the new toilet's dimensions fit in your bathroom space.
  2. Follow a similar process for removal and installation as with plastic models.
  3. Be aware that porcelain toilets are heavier, so make sure your RV floor can handle the extra weight.

Upgrading to a porcelain model offers durability and a home-like feel to your RV bathroom.

Could you list the essential parts needed for RV toilet replacement?

When replacing your RV toilet, you will need: