Toilet Rings 101: The Ultimate Guide to Replacing a Toilet Wax Seal the Right Way

What Is a Toilet Ring—and Why It Matters

Let’s start with the basics. A toilet ring—also known as a wax ring—is a thick, donut-shaped seal made from soft wax. It sits between the toilet base and the floor-mounted flange (aka closet flange). Its job? Creating a watertight and airtight seal to keep leaks and sewer gas at bay.

Though inexpensive and hidden from view, the toilet ring is essential for proper toilet function and home hygiene. When it fails, the problems get messy fast—leaks, bad smells, and even floor damage.

When Should You Replace a Toilet Ring?

Toilet rings don’t have an expiration date, but they do wear out. Here are telltale signs it’s time for a replacement:

• Water pooling around the base of the toilet
• Wobbling or rocking toilet
• Bad odors that don’t go away
• You’re removing or replacing your toilet

The rule is simple: If the toilet comes off, the ring gets replaced. Once the wax is compressed, it won’t seal right again.

Tools and Materials You’ll Need

Before you dive in, get everything ready so you don’t have to scramble mid-repair.

Tools:

• Adjustable wrench
• Flathead screwdriver
• Utility knife
• Plastic putty knife
• Bucket and towels
• Mini hacksaw (if needed)
• Waterproof gloves

Materials:

• New toilet ring (correct size and thickness)
• Replacement toilet bolts
• New water supply line (optional, but smart)
• Caulk or sealant

Prepping the Work Area

Lay down a tarp, towel, or cardboard to protect your bathroom floor. Decide where you’ll place the toilet once it’s removed—either on wood blocks or in the bathtub. Got a helper? Even better. Toilets can be awkward and heavy.

How to Replace a Toilet Ring: Step-by-Step

Phase 1: Remove the Toilet

Step 1: Shut Off the Water
Turn the water valve behind the toilet clockwise to stop the flow. No valve? Turn off your home’s main water supply.

Flush the toilet, holding the handle down to empty the tank and bowl. Use a sponge or water solidifier to mop up any leftover water.

Step 2: Disconnect the Water Supply Line
Loosen the compression nut with a wrench and remove the hose from the tank’s fill valve. If the hose is old or stiff, replace it.

Step 3: Loosen the Bolts and Break the Seal
Pop the bolt caps off with a flathead screwdriver. If bolts are corroded, apply penetrating oil and let it sit. Use a wrench to remove the nuts.

Score any caulk around the base with a utility knife. Then gently rock the toilet side-to-side to break the old toilet ring seal. Carefully lift the toilet straight up and place it aside.

Phase 2: Remove and Replace the Toilet Ring

Step 1: Remove the Old Ring
With gloves on, scrape the old wax from the flange and the bottom of the toilet using a putty knife. Toss it all—never reuse an old ring.

Plug the drain opening with a rag or towel to block sewer gas.

Step 2: Inspect the Flange and Subfloor
Check for cracks, rust, or decay. If damaged, use a flange repair kit. If the flange is too low due to flooring upgrades, add a flange spacer or use a thicker toilet ring.

Step 3: Install New Toilet Bolts
Insert the new T-bolts into the flange slots, making sure they stand upright and are evenly spaced.

Step 4: Place the New Toilet Ring
Center the wax toilet ring on the flange (or attach it to the toilet base). Make sure it’s warm enough to be pliable—room temperature is perfect.

Phase 3: Reinstall the Toilet

Step 1: Set the Toilet in Place
Lift the toilet and align the bolt holes over the flange bolts. Keep it level and straight as you lower it.

Use a slight twisting motion—not rocking—to seat the toilet and compress the ring.

Step 2: Tighten the Bolts
Secure the toilet by tightening each nut a little at a time, alternating sides. Stop when the toilet feels snug and secure. Don’t overtighten or you could crack the porcelain.

Trim any excess bolt length and snap on the bolt caps.

Step 3: Reconnect the Water Line
Wrap plumber’s tape around the tank threads and reconnect the supply line. Open the valve and let the tank fill.

Step 4: Test for Leaks
Flush a few times while checking for leaks around the base. Lay tissue paper around the perimeter to detect moisture.

If you spot a leak, remove the toilet and repeat the process with a fresh ring.

Step 5: Apply Caulk
Seal the toilet base with caulk, but leave a small 1-inch gap at the back. This acts as a leak detection point in case future issues arise.

Extra Tips for a Smooth Install

• Don’t reuse a toilet ring—ever
• Use a thicker ring if the flange is lower than floor level
• Avoid stacking rings—they won’t seal properly
• Replace the water supply line while you’re at it
• If the toilet rocks, use plastic shims before caulking

Toilet Ring FAQs

Can I replace the toilet ring without removing the toilet?
Nope. You have to remove the toilet to access and properly install a new ring.

How do I know which size toilet ring to buy?
Measure the toilet’s drain hole. Most use a 3-inch or 4-inch ring. Also, choose a thicker one if the flange sits low.

How long does a toilet ring last?
Once installed properly, it can last 20–30 years—unless it gets disturbed or the toilet becomes loose.

Can I stack wax rings to make up height?
It’s not recommended. Instead, use a single extra-thick ring or a flange spacer kit for a better, leak-proof seal.

What’s the wax made of?
Toilet rings are typically made from soft petroleum wax. It’s mold-resistant and durable enough to last for decades.

Wrapping Up

Replacing a toilet ring is one of those “looks scarier than it is” DIY jobs. With a bit of prep and the right instructions, anyone can do it. Just follow each step carefully, don’t rush, and double-check for leaks when you’re done.

You’ll save money, stop that annoying leak, and maybe even feel like a plumbing pro. And if it ever feels too tricky, there’s no harm in calling for backup.

Call 1-Tom-Plumber 

Don’t hesitate to contact us here or call us at 1-Tom-Plumber (1-866-758-6237) if you need any plumbing, drain cleaning, water damage, or excavation service. 1-Tom-Plumber’s certified team of plumbers and drain technicians respond immediately to any emergency plumbing, drain cleaning, or water damage problem. We also handle the excavation of underground water lines and sewer main lines. Our immediate-response team is available every day and night of the year, even on holidays.