Why is my new toilet leaking around the base?

Author: Prof. Johnathan Christiansen  |  Last update: Sunday, December 10, 2023

When a toilet leaks at the base, with water pooling on your bathroom floor, it's typically due to the failure of the wax gasket that seals the toilet to the floor. This seal should make a watertight connection between the toilet and floor. A leak often means that the wax seal may need to be replaced.

Why would a new toilet leak from the bottom?

One reason for a toilet leak from the base might be a loose connection where the tank meets the toilet. Check the connecting bolts. If they seem loose or you can see water gathering in that area, use the screwdriver to tighten them. Approach the bolts from inside the tank and screw downward to create the best seal.

How do I know if my wax ring is leaking?

Again, leaky water is a telltale and common sign of a bad wax ring. If you do not regularly see moisture or puddling water under your toilet, you may be fine. Leaks can, however, happen where you do not see them, under the finished floor and into the subfloor.

Why is my toilet leaking between tank and base when flushed?

If the water appears to be leaking from between the tank and bowl, near the center, you may need a new tank-to-bowl sponge gasket, or new washers for the tank-to-bowl bolts. If water is leaking from the tank to bowl gasket it will tend to leak more often when the toilet is flushed.

Is toilet leaking at base an emergency?

Obviously, a toilet leaking from base is the last thing you'd want to see when you're off to work in the morning or trying to run some errands for the day. Rather than waiting for your bathroom to turn into an indoor swimming pool, call for local plumber services immediately.

How To Fix TOILET Leaking At BASE. Pull-RESET Universal. EASY. FAST

How do you tell if your toilet is leaking at the base?

The main signs of a leaking toilet may include a damp area on the floor around the bottom of the toilet, a spongy feeling in the floor at the bottom of the toilet seat, signs of dampness on the ceiling in the room underneath your toilet, or the occasional smell of sewer gas and the flooring coming up in the area around ...

Why would a new wax ring leak?

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.

How often should a toilet wax ring be replaced?

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. When that happens, they need to be replaced.

Does wax ring come with new toilet?

Toilets usually include a wax ring. However, it's best to purchase a backup wax ring in case of damage during installation. You can also use a wax-free ring. These types of rings fix on the flange, rather than the toilet outlet.

Should a toilet be sealed at the base?

In most parts of the United States, it is a requirement of building code to caulk around toilet bases. This could apply to both new builds and remodeling, though as regulations vary from one state to another it's a good idea to check local statutes.

Should I caulk around my toilet?

🚽 Caulking Prevents Water Contamination

It could be water splashing out of a bathtub, mop water, water from a shower and even misguided potty training from your young boys who seem to miss the toilet bowl every single time! Without caulk around the toilet base, water can get under there and sit for a long time.

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

$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.

How tight should you tighten a toilet?

I start by hand tightening as much as I can, then I tighten a little on each side and check if the toilet moves. If it does then I tighten a bit more, check and repeat until there's no movement. You're trying to avoid bowl movement, so that it doesn't shift or fall over, not to hold the floor up by the toilet bolts.

Should toilet flange be replaced?

If you notice a lot of water pooling at the base of your toilet and inspect to find that your flange is cracked or broken, it's time for a replacement. Make sure to properly measure your drain pipe and drain to ensure that you choose a replacement flange kit that is the right size.

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.

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.

What is the most common toilet leak?

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.

What is the most likely cause if water is leaking from the base of the toilet bowl?

Why is the toilet is leaking from the base? The leak is usually caused when the seal under the toilet fails. Below you'll learn how to install a new wax gasket to create a watertight seal between the toilet and the closet flange and install a new flexible water-supply tube.

How do you test a toilet seal?

Here is a simple Toilet Dye Test you can complete to see if your toilet is leaking.
  1. Drip 10 to 15 drops of food coloring into the toilet tank. ...
  2. Wait 10 minutes.
  3. If colored water appears in the toilet bowl, you have a leak.
  4. Generally the leak is in or around the plunger ball or flapper valve at the bottom of the tank.

Do all toilets use the same size wax ring?

Drain Size

Most waste lines have a 3- or 4-inch diameter. Many wax rings are compatible for both sizes, but it's still prudent to double-check the compatible drain size before buying a new product. To determine the correct wax ring size for your toilet, you'll need to remove and measure the base.

How much does it cost to fix a leak at the base of a toilet?

It costs between $150 and $300 to fix a leaking toilet in most cases. The cost would be a lot more if the leak has caused damage to your floor or if it's a recurring problem.

When should I call a plumber for a leaking toilet?

Leaking Around the Base of Your Toilet

The worst-case scenario is that the toilet leaks through the floor and causes damage to the room underneath. For this reason, it's best to involve a plumber to pinpoint the cause of the toilet leak and provide a quality solution.

Previous article
What are the GREY marks on my porcelain sink?
Next article
Do any flowers grow in the fall?