How to Replace a Toilet Wax Ring Easily

Reviewed by HomeMD.ai editorial team · Last updated: May 17, 2026

Understanding the Problem

A leaking or wobbly toilet almost always comes down to a failed seal at the base. That seal is the wax ring, which can dry out and crack after 10 to 20 years. If the toilet rocks even slightly, it can break the seal. Additionally, if the flange sits too low below the finished floor, the wax never compresses enough, leading to leaks. A clog overflow can also push water past the seal.

Step-by-Step Guide to Replace a Toilet Wax Ring

Replacing the wax ring and resetting the toilet squarely on the flange is crucial to resolving leaks. Here's how to replace a toilet wax ring:

1. Shut off the water at the valve. Flush and hold the handle to drain the tank. Sponge out the last inch so it is light to lift.
2. Disconnect the supply line. Remove the two closet nuts. Rock the bowl gently side to side until you feel it break free. Lift straight up. It will feel stuck then suddenly release.
3. Stuff a rag in the drain to block sewer gas. Scrape off all old wax from the flange and toilet horn. The flange should feel smooth, not gummy.
4. Check flange height. It should sit about flush to 1/4 inch above the floor. If it is low, use a spacer or a thicker ring.
5. Set a new seal. Use Oatey 3 in. or 4 in. PVC Wax Ring with Horn, model 31194. Press it onto the toilet outlet so it stays put.
6. Lower the toilet straight down over the bolts. You will feel the wax compress and the bowl “settle.” If it sits proud and rocks, it is misaligned. Lift and reset, do not twist excessively.
7. Tighten nuts evenly. Snug plus a quarter turn. Do not overtighten, that cracks porcelain.
8. Reconnect water. Turn on slowly. Flush and watch the base for any seep.

Tools and Materials Needed

• Tools: Husky adjustable wrench, Hyde 6 in. putty knife, small wet vac or sponge.
• Materials:
  • Oatey Wax Ring with Horn 31194
  • Everbilt Brass Closet Bolt Set 5/16 in. x 2-1/4 in.
  • Fluidmaster 12 in. Braided Toilet Connector

Cost Comparison

When to Call a Professional

If the flange is broken below the subfloor, or you see rot around the drain opening, it's best to call a professional. They can address more complex issues that might arise during the repair process.

FAQs

Do I need a wax ring with a horn?
Yes in most cases. The horn helps guide waste into the pipe and reduces leaks on slight misalignment.

Can I reuse the old wax ring?
No. Once compressed it will not reseal.

My flange is below the tile. What now?
Use an Oatey flange extender or a “jumbo” wax like Oatey 31196, or stack with a plastic spacer. Do not stack two plain wax rings.

Why does it still smell after replacement?
Either the rag was left in the drain, the seal did not compress fully, or there is a cracked flange letting gas escape.

For other home repair topics, consider learning about fixing clogged drains or maintaining water heaters, as these are common issues that can arise in conjunction with toilet repairs.