What causes wax seal on toilet to fail?

Author: Mekhi Rau  |  Last update: Monday, November 6, 2023

First and foremost, a loose toilet will often cause a wax ring to lose its seal and leak. Next, in the event that you have to replace your toilet, your wax ring will lose its seal, so you'll need to install a new one along with your new toilet.

Why does toilet wax ring keep failing?

An improperly installed wax ring may leak. Perhaps the installer used a ring that wasn't thick enough, or perhaps the flange is high enough to lift the toilet off the floor and make it rock. Once water begins seeping through a compromised wax ring, it won't stop. It doesn't take standing water long to rot a subfloor.

What is the life expectancy of a toilet wax seal?

Every toilet in your home has a wax ring connecting it to your plumbing, which creates a waterproof seal to keep what goes down to the sewer from seeping out the sides. This piece of equipment usually lasts as long as the toilet, about 30 years.

Why does the wax seal on my toilet keep leaking?

A: The most likely cause is that the wax ring around the closet flange is leaking, allowing a small amount of water to seep from under the toilet with each flush. The wax rings are probably misaligned. The fix is to reseat the toilet using a flange extension and one wax ring.

What happens when wax ring goes bad on toilet?

A damaged wax ring not only creates a leak every time you flush your toilet, but it can allow gases from the sewer system to leak into your home. This isn't just a sign of a damaged wax ring but also a sign of a serious health risk. Sewer gases are foul smelling, potential fire hazards and harmful to your health.

Put aluminum foil in your toilet…and THIS will Happen! (Dollar Tree Trick)

Does a wax ring only leak when flushed?

The only-when-flushed toilet leak could be caused by loose mounting bolts or a worn-out wax gasket while the all-the-time leak could be caused by a loose water supply line connection, a problematic water shutoff valve, or a faulty seal between the toilet tank and its base.

How do you know when you need a new toilet wax ring?

Determine if the Wax ring is possibly bad by inspecting the floor for water or a foul odor of sewer gas. Use food coloring. If are unsure of where water is coming from you can add food coloring to the toilet tank. If the floor's water is the same color, then you likely will need to install a new wax ring.

Why is my toilet still leaking after I replaced the wax ring?

In your situation, it sounds like the floor has been build up around the flange and it is lower than the floor so they have to put multiple wax rings so the toilet seals down to the flange or use the rubber extension flange.

How much does it cost to replace a toilet wax seal?

$90-$120 is a good ballpark.

If you are having other plumbing work done, they might do it cheaper, and if they have a large travel fee, you may pay closer to $150. Unless there is a problem, it should take them under a half hour, whereas, it might take a novice 1.5-2 hours.

Can plunging a toilet damage the wax ring?

In an effort to dislodge whatever is clogging the toilet, many homeowners get overzealous and thrust too hard downward into the toilet with their plunger. A hard thrust downward can break the wax seal between the toilet and the floor, causing a leak. And a really hard thrust could even crack the bowl.

Can you replace just the wax ring on a toilet?

When it works properly, the wax ring creates a watertight seal between the toilet base and the drain pipe. Unfortunately, wax can fail over time, leading to water leaking onto the floor. The good news is that popping on a replacement wax ring will fix the problem.

How often does a toilet wax ring need to be replaced?

The wax ring is exactly what it sounds like: a ring made of sticky wax that helps form a watertight seal between the bottom of the toilet and the sewer pipe. It requires no maintenance and can last 30 or more years, often as long as the toilet itself. But sometimes wax rings can dry out, crumble, and fail prematurely.

How do I know if my toilet flange is bad?

Some signs you may need toilet flange repair include:
  1. Toilet rocking back and forth.
  2. Sewer odors.
  3. Leaks from the base of the toilet.
  4. Leaks in your subflooring.
  5. Loose tiles around the base of the toilet.

Is there anything better than a wax ring for a toilet?

Remove the hassle out of replacing your toilets wax seal with Fluidmaster Better Than Wax. This superior solution eliminates messy wax, and cuts down on repair time, with a rubber toilet seal design.

What is better than a wax ring?

Wax-free toilet seals are made out of a heavy duty rubber, so they're flexible enough to shimmy into the flange without smearing a wax ring. Wax-free seals can also be reused. As long as they're still attached to the bowl in good condition, you can reinstall the toilet without replacing the seal.

How much does it cost for a plumber to replace wax ring toilet?

As a result, having a local plumber replace your toilet's wax ring can be anywhere from $75-250 depending on the cost of the trip charge and whether anything else is discovered in the process that needs fixing.

Can you reuse a better than wax toilet seal?

An argument that one could make for wax-free seals is that they're reusable. If you need to remove the toilet base with a wax ring, you'll need to purchase another ring to reinstall the toilet. When you use a wax-free seal, it's reusable as long as it's in good condition.

Should I put the wax ring on the toilet or the flange?

Place the wax ring on the closet flange, not on the toilet. Pick up the toilet and set it evenly over the closet flange, making sure the bolts come through the bolt holes in the toilet base. Fine-tune the toilet position, so it's right where you want it, then push it straight down so it smashes the wax evenly.

Can a clogged toilet cause a leak?

A clogged drain line can put pressure on the wax ring at the base of your toilet, which can break the ring and cause toilet leaks. If you suspect this is the problem, contact a plumber for an evaluation. They can unclog the drain line and get your toilet back up and running in no time.

How do I test my toilet wax ring?

It is fairly easy to tell if you have a properly sealed wax ring; your toilet will not wobble, will be stable, and will have no water leaks. A few specific things to check include the height of your toilet flange, the stability of the toilet, and whether the floor around the base of the toilet remains dry.

Why is water trickling into the toilet bowl?

The most common toilet leak is caused by a deteriorated flush valve (flapper) at the bottom of the toilet tank. If the flapper does not seat properly, water will leak into the toilet bowl. Often this leak will occur without being heard.

Why is my toilet leaking from the bottom of the bowl when I flush?

If the toilet continues to leak at the base when flushed, it might not be bolted tightly to the floor. Look at the base of the toilet, and you'll see two tee bolts, which might be covered with caps. If the wax ring under these bolts doesn't form a water-tight seal, the toilet will leak from the base when you flush it.

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