Repairing Guides

how to repair leaky toilet

by Mr. Judd Johnson Published 2 years ago Updated 2 years ago
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When your toilet is leaking at the base, this is the first fix you should try as it’s simple and easy:

  • Locate the tee bolts that secure your toilet to the floor. Some toilets have caps that protect the bolts but you can...
  • Use a wrench or pliers to tighten the bolts on either side of your toilet until it’s firmly mounted to the floor and it...

Full Answer

What are the best ways to repair your leaking toilet?

Repairing a Leaky Toilet Tank

  • Determine the Cause of the Leak. The first thing you want to do is find the cause of the leak. ...
  • Sweating. Sweating is a common problem during the summer months. ...
  • Worn Flap. When you have a war and flat water will slowly leak out the bottom of the tank. ...
  • Sticking or Improperly Set Floater Switch. ...
  • Shut-off Valve and Inlet Hose. ...
  • Toilet Flange. ...
  • Cracked Body. ...

How to tell if your toilet is leaking?

To see if the flapper is leaking, here’s a simple test:

  • Put a few drops of food coloring in the tank.
  • Wait for 25 minutes.
  • If the color spreads into the toilet bowl, there's a leak.

How to fix your leaking toilet?

  • Shut off the water at the valve and drain the water from the toilet tank, as indicated above.
  • Use a plunger to force out any water that remains in the bowl. ...
  • Dry out the bowl completely.
  • Disconnect the water supply line from the toilet tank; loosen the nut that attaches the supply line to the tank and it should slide out easily.

More items...

Why is my toilet leaking from the bottom?

  • A crack in the tank or bowl
  • A leak between the base and tank (which has another seal, usually made of rubber or foam)
  • A malfunctioning or loose supply tube
  • A malfunctioning water shutoff valve
  • Condensation from the toilet bowl (aka a “sweaty” bowl)

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How do you fix a toilet that is leaking from the bottom?

2:414:20How to Fix a Toilet - Diagnostics - Leaking Base - YouTubeYouTubeStart of suggested clipEnd of suggested clipReplace the wax ring and toilet mounting bolts. Then remount the toilet ensuring that the toilet isMoreReplace the wax ring and toilet mounting bolts. Then remount the toilet ensuring that the toilet is secured properly to the flange. If the toilet flange appears to be in bad condition.

Why does my toilet keep dripping?

Leaky loos are usually caused by a faulty flush-valve or fill-valve inside your tank – predominantly on dual-flush WCs. It can happen with any WC brand and type, but most leaky loos are the result of a failure in valve seals. These failures can happen on old and new WCs.

Why is my toilet trickling water after flushing?

A toilet tank that constantly trickles usually is caused by a worn-out flapper valve. A toilet tank that trickles water slowly not only can create an annoying sound, but it also wastes water and increases your monthly water bill.

Refill Tube

Replaces water in bowl after flush. If toilet runs intermittently, check that tube's end is above water level in tank.

Ball Cock

On/off valve regulated by float ball fills tank and bowl after flush. If toilet runs intermittently, ball cock could be faulty and may need to be replaced.

Float Cup

When it comes time to retire an old ball-cock flush mechanism, the all-in-one plastic replacements stocked by home centers make for an easy fix. Float-cup mechanisms go in quickly and adjust easily for simple repairs.

Chain

Opens flapper at beginning of flush. If toilet runs constantly, check that chain isn't too short or long, thus interfering with flapper closing.

Overflow Tube

Prevents tank from overflowing. If tank water is constantly draining into tube, bend arm of float ball down slightly or lower float cup on replacement fill-valve assembly.

Flapper

Lifts to let tank water flow into bowl. If toilet runs intermittently, scrub mineral deposits off it (or flush-valve seat under it) to tighten seal. If that doesn't help, replace it.

Wax Ring

Seals connection between bottom of toilet and drain. If water leaks out base of bowl, replace ring.

Why is my toilet leaking water?

The wax ring that seals the toilet to the drain may be faulty. This is sometimes caused by a toilet that is loose, or it can be the result of a wax ring that has grown old and is no longer pliable enough to provide a good seal. Water condensing on the toilet might be dripping down and puddling around the base of the toilet.

What happens if you see water in your toilet?

The water seeping from your toilet is dirty and can cause unpleasant odors and potential health hazards. The presence of standing water near your toilet can also damage your flooring and subflooring as well as your first-floor ceiling if your affected bathroom is on the second story. 1:28.

How to remove old wax from toilet bowl?

Use a putty knife to scrape the old wax ring away from the drain opening (horn) on the bottom surface of the toilet bowl, making sure to remove any stuck-on wax. Older wax rings build up a grimy residue over time, so be sure to have gloves and trash bags ready.

Why does water pool around the base of my toilet?

If you notice water pooling around the base of your toilet, there are several possible causes: The bolts that secure the base of the toilet to the floor might be loose. The base of a toilet is held to the floor with two tee-bolts threaded up from the mounting ring through holes in the base of the toilet.

What to do if tee bolts don't work?

If the tee bolts can't be tightened, you may need to remove and reseat the toilet, installing new tee bolts and a new wax ring. If this doesn't work, it is likely that the wax ring is damaged or worn out; proceed to the next step to begin replacing the wax ring.

What happens if a toilet flapper is faulty?

Check the flapper. A faulty flapper can allow a small, constant stream of cool water to continually flow into the toilet tank. The lower temperatures of the in-tank water will cause a buildup of condensation of humid room air on the outside of the tank. Check your flapper to ensure it is creating a proper seal.

Why does water drip down the floor of a toilet?

The water in the toilet tank and bowl is often quite cold, and the cool porcelain can cause humid room air to condense and drip down onto the floor. If this is the case, you can usually see droplets of water collecting on the outside of the porcelain bowl and tank.

How to fix the 4 most common causes of leaks under the toilet

Fix the 4 most common causes of leaks under the toilet. With the right parts it's easier (and cheaper) than you think.

3 signs of a toilet leaking at the flange

Water on the floor, water stains on the ceiling or an occasional smell of sewer gas are all signs of a possible leak.

Pulling the toilet

Unscrew the water closet nut with a wrench. If the bolt spins along with the nut, grab the exposed bolt above the nut with locking pliers. Loosen the nut just enough to squeeze in a hacksaw blade below the nut and saw through the bolt. TIP: Use a close-quarters hacksaw like the one shown or wrap a rag around a bare blade.

Broken toilet flanges: How to replace toilet flange

Thoroughly clean off wax residue with mineral spirits. You may not need to completely replace toilet flange. Instead, set a reinforcement ring over the flange so the water closet bolt slots line up and mark screw locations on the floor. Drill a clearance hole through tile or masonry with a hammer drill and a 1/4-in. masonry bit.

Fixing flanges that are too low

Clean the toilet flange with mineral spirits to remove all the excess wax. Fit the extender ring over the flange and remove any original flange screws that line up with the ones in the extender ring. Apply a bead of silicone caulk around the inside edge of the extender ring.

Minimal rot around the flange

Remove the old toilet flange screws and slip each half of the flange support beneath the flange edges. Lift the flange with a screwdriver or pry bar if necessary.

Reset and fix a rocking toilet

Push the new wax ring onto the toilet horn with the rounded side toward the toilet. Mark the water closet bolt positions on the floor with masking tape.

How to get rid of leaking water in toilet?

Add coloring or food dy e to the water and wait 10 minutes. Add 1 dye tablet or 10 drops of food coloring to the water in the tank. Dyeing the water this way will allow you to see whether the water in the tank is leaking into the toilet bowl. You can normally purchase water dye tablets from your local water provider.

Why is my toilet water leaking?

Check the water in the toilet bowl to see if it’s changed color. If the water in the bowl has any trace of the dye you put in the tank, the water in the tank has leaked into the bowl. This means the cause of your leak is a faulty flush valve. If you have a damaged flush valve, it will have to be replaced.

How to tell if water in a tank is rising or falling?

Make the mark at the highest point where the water in the back of the tank reaches. This will help you to determine whether the water in the tank rises or falls over time. For best results, use a sharpie; a pencil mark will work, but it may be washed away if the water rises.

Can you tell if a toilet tank is leaking?

Yes, especially if the leak is in the tank. To see if your toilet tank is leaking, lift the lid on your tank and check if the water level has gone up or down. This might mean water is leaking into or out of you tank.

Can you fix a leaky toilet tank?

A leaky toilet tank never feels like a simple problem to deal with. Whether water is leaking into the bowl or onto the floor, some plumbing work will be required to fix it. Luckily, once you know how to determine the cause of the leak, it’s a straightforward process to fix your leaky toilet tank.

How to remove water from toilet tank?

Step 1: Cut the Inflow of Water and Expel Water from the Tank. Stop the inflow of water by shutting the control valve at the supply pipe under the tank. Then remove the water in the tank by flushing the toilet and scooping out the remaining water with a cup.

What does it mean when a toilet flapper leaks?

Drop some trickles of colored fluid in the tank and observe for a while. Once the colored liquid seeps into the bowl without flushing toilet, it indicates a leaking flapper. It’s always messy when a flapper is faulty in a compact toilet for small space.

How to stop water from leaking from a tank?

Fasten these nuts with a screwdriver and a flexible wrench. Clasp the nuts with the screwdriver and fasten with the wrench by turning in a circular direction. After fastening the nuts, the leaking water from the bottom of the tank will cease.

What to do if water is still dropping?

If water is still dropping, then it will require total replacement of the fill valve cabinet or the plastic washer or screw. Method 2. Changing a worn out fill valve. In the case that leaks still occur after you have tightened the screws, you may need to fix in a new fill valve.

How to fix a crack in a water tank?

Stop the water supply and remove water from the tank by flushing toilet. Dry the body of the tank before you start fixing. You may use a cloth to dry or a hairdryer to fasten the drying. After that, ensure the procedures on the toolkit to mend the crack. Give it time like 2-3hours for the mend to patch.

What does it mean when a gasket doesn't work?

Release the flow of water into the tank and observe the bottom for a while. If water still drips, you should get new nuts, but if it doesn’t, that means the gasket is in working order.

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