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How to Replace Toilet Seal | A Step-by-Step Guide [2024]


Now we are here to talk about How to Replace Toilet Seal. If you’ve noticed water leaking around the base of your toilet or encountered unpleasant odors, it might be time to replace the toilet seal. That’s why

Here, we’ll walk you through the process of replacing a toilet seal, focusing on the essential steps and considerations. The wax ring seal between the toilet and the toilet flange, commonly known as a closet flange, plays a crucial role in preventing leaks and maintaining a secure connection.

Also, if you think you need a professional plumbing company to solve this properly, then contact the Plumbers Sherman TX company. Please keep in mind that we are based in Sherman, TX. Let’s dive into the details.

How to Replace Toilet Seal

Tools and Materials Needed

Before you embark on this DIY project, gather the necessary tools and materials:


  • Adjustable Wrenches
  • Bucket/Sponge
  • Mini Hacksaw


  • Replacement Wax Ring
  • Replacement Toilet Mounting Bolts
  • Replacement Water Supply Line
  • Floor Covering
  • LiquiLock

Read: Cpvc vs Pvc Difference

Drain and Remove the Toilet

  1. Prepare for Disassembly: Turn off the water supply to the toilet by rotating the valve clockwise. Flush the toilet, holding the handle down to drain as much water as possible.
  2. Disconnect Water Supply: Disconnect the water supply tube from the toilet fill valve and the 3/8” compression nut. Consider replacing the toilet supply during this process.
  3. Remove Caps and Nuts: If the toilet is caulked to the floor, score the caulking with a razor knife. Protect the floor or bathtub with a covering. Remove caps covering the bolts and washers by gently prying them with a flathead screwdriver. Use an adjustable wrench to remove nuts and washers.
  4. Lift and Remove Toilet: Gently rock the toilet back and forth to break the old wax seal. Lift the toilet off the floor and place it on a protective covering.

Read It: How To Remove Mold From Under Silicone Caulk

Install the New Wax Ring

  1. Remove Old Wax Ring: Wear disposable gloves to scrape off the old wax ring from the toilet base and flange. Scrape caulk off the toilet bowl and finish the flooring. Plug the drain immediately after removing the old wax ring.
  2. Prepare for Installation: If installing new bolts, ensure they are in place. Center them with the toilet flange opening. Place the new wax seal on top of the toilet flange, ensuring it is centered.
  3. Reinstall Toilet: Lower the toilet onto the new wax seal, using bolts as a guide. Keep the toilet level and avoid rocking it. Install washers and bolts, tightening alternately from side to side until the toilet sits firmly on the floor.
  4. Adjust and Seal: Saw off extra bolt length if needed. Turn on the water supply and let the tank fill before flushing. Check for leaks by placing tissues around the base. Seal the toilet bowl to the finished flooring with caulk, leaving a small observation opening.
  5. Final Checks: Monitor for leaks and ensure the toilet is securely sealed. Replace the water line for added insurance against leaks.

Important Topic: How to Fix Popping Noise in Water Heater

Additional Considerations

  • Check for a broken toilet flange if your toilet wobbles.
  • Use a flange repair kit for a broken toilet flange.
  • Add a flange spacer if replacing a thin floor with a thicker material.
  • Replace the T-bolts when replacing a wax seal.
  • Consider replacing the flapper if you encounter leaks before turning off the water.

Read Also: How to Remove Mold From Shower Caulking


Congratulations! You’ve successfully replaced your toilet seal, ensuring a leak-free and odor-free bathroom. Regular maintenance and prompt replacement of the wax ring contribute to the longevity of your toilet and prevent costly damages. If you’re ever unsure or uncomfortable with the process, don’t hesitate to seek professional assistance. Happy DIYing!

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