how to change rv toilet

2 min read 04-02-2025

Introduction

Replacing your RV toilet might seem daunting, but with the right tools and a little patience, it's a manageable DIY project. This guide will walk you through the process, saving you money and the hassle of professional installation. Changing your RV toilet is a worthwhile investment in your RV's comfort and functionality.

Tools and Materials You'll Need

Before you begin, gather these essential tools and materials:

New RV toilet: Choose a replacement that's compatible with your RV's plumbing system. Consider features like low-profile design for better headroom or a macerating toilet if your black tank is far from the toilet.
Screwdrivers (Phillips and flathead): You'll likely encounter a variety of screw types.
Adjustable wrench: For loosening and tightening plumbing connections.
Pliers (channel-lock or slip-joint): To grip and turn fittings.
Bucket: To catch any remaining water in the toilet bowl.
Shop rags or towels: For cleanup.
Plumber's putty: To create a watertight seal around the toilet base.
Teflon tape: For sealing threaded pipe connections.
Safety glasses and gloves: Always prioritize safety!
Optional: Toilet sealant: Provides an additional layer of protection against leaks.

Step-by-Step Guide to RV Toilet Replacement

1. Water Shut-Off

Locate and turn off the water supply: This is usually a valve near the toilet.
Flush the toilet: Empty the bowl to minimize spills.

2. Disconnect the Toilet

Disconnect the water supply line: Use an adjustable wrench or pliers to loosen the connection.
Remove the toilet bolts: These usually secure the toilet to the floor. They might be located under decorative caps.
Carefully lift the toilet: It may be heavy, so have a helper if needed.

3. Clean the Flange

Inspect the toilet flange: This is the ring bolted to the floor that seals the toilet to the plumbing.
Clean the flange: Remove any old sealant or debris. This ensures a proper seal for the new toilet.

4. Install the New Toilet

Apply plumber's putty: Create a ring of putty around the base of the new toilet.
Align and position the new toilet: Carefully lower it onto the flange, ensuring it's level.
Tighten the bolts: Secure the toilet to the floor. Don't overtighten!
Connect the water supply line: Use Teflon tape to seal the threads before connecting the water line.

5. Reconnect the Water Supply

Turn the water supply back on: Check for leaks around the base and water supply line.

6. Test the Toilet

Flush the toilet several times: This will test the seal and check for leaks.
Inspect for any leaks: If leaks persist, check the seals again.

Troubleshooting Common Issues

Leaks: Recheck the seal around the base and water supply connections. Tighten bolts, but avoid over-tightening.
Toilet won't flush: Check the water supply line, ensure the flapper is properly seated, and inspect the fill valve.

Maintaining Your RV Toilet

Regular maintenance will help extend the life of your RV toilet. This includes:

Regular cleaning: Prevent buildup of waste and mineral deposits.
Periodic inspection: Check for leaks or signs of wear and tear.

Conclusion

Replacing your RV toilet is a rewarding DIY project. By following these steps, you can ensure a smooth and successful installation. Remember to always prioritize safety and take your time. With a little effort, you'll enjoy a fresh, functional toilet in your RV for years to come. Now you're ready to hit the road with confidence knowing you can tackle your RV toilet repairs.