How Do You Fix A Leaking Toilet Tank

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A leaky toilet tank never feels like a elementary trouble to deal with. Whether water is leaking into the basin or onto the floor, some plumbing work will be required to fix information technology. Luckily, once you know how to determine the crusade of the leak, it'due south a straightforward process to gear up your leaky toilet tank. Yous can exercise this by replacing the flush valve, fixing a leaky fill up valve, or but tightening the toilet'southward gaskets.

1

Turn off the water supply to the toilet. ^[ane] Locate the shutoff valve in back of the toilet, connected to a piping coming out of the wall. Turn this valve clockwise equally far as y'all can to plow the water off.^[2]
2
Marker the water level in the tank with a marker or a pencil. Make the marking at the highest signal where the water in the back of the tank reaches. This volition assistance you to determine whether the water in the tank rises or falls over time.^[three]
- For best results, employ a sharpie; a pencil mark will work, but information technology may be done abroad if the water rises.
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three
Add coloring or nutrient dye to the h2o and look 10 minutes. Add together 1 dye tablet or ten drops of food coloring to the h2o in the tank. Dyeing the h2o this style will allow y'all to see whether the water in the tank is leaking into the toilet basin.^[4]
- You can ordinarily buy water dye tablets from your local water provider.
- Be sure to wait at least ten minutes then that the water in the tank will completely change colour.
4
Bank check the water in the toilet basin to see if it's changed colour. 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 basin. This means the cause of your leak is a faulty flush valve.^[5]
- If y'all have a damaged flush valve, it will have to exist replaced.
5
Look to see if the h2o level in the tank has gone upward or down. ^[6] If the water has risen, this means there's probably something wrong with the fill valve. If the h2o has gone down, at that place'south a probably a leak in your flush valve.^[7]
- If the water level has gone up, check to see if there's whatever h2o in the overflow tube. This would also indicate that the fill up valve is leaking and overflowing the h2o in the tank.
- If you lot're non sure exactly what part of the toilet associates you demand to replace, but purchase a kit with all new parts and supervene upon everything. They're pretty inexpensive and information technology will relieve y'all a lot of fourth dimension.^[8]
vi
Check if the dyed water from the tank has leaked onto the flooring. If dyed water has seeped out from the bottom of the tank and onto the floor, this ways information technology's probably a leaky gasket. If dyed h2o has come out of the torso of the tank, the tank itself may be cracked.^[9]
- Unfortunately, if the tank is cracked, it volition have to be completely replaced.
Tip: Toilets may develop condensation on the exterior of the tank during hot atmospheric condition or when you're taking a very hot shower. This "tank sweat" is harmless.

1

Turn off the water supply to the toilet and flush it. This will bleed all of the water out of the tank and down the commode. If you lot can't flush the toilet for some reason, you can also employ a cup or a hose to remove the water from the back of the tank.^[x]
2
Remove the nuts attached to the supply tube and to the toilet basin. The tank is fastened to the wall by the supply tube and attached to the toilet basin by two bolts underneath the tank. Use an adaptable wrench to loosen and remove these basics so you can remove the tank.^[11]
- Yous may need to utilize a flathead screwdriver to hold the bolts in identify equally you turn the nuts nether the tank.
three
Lift the tank off of the bowl once the basics have been loosened. Place the tank upside down next to the toilet bowl on a stable surface. If you want to avoid water getting on the floor, put some towels down and place the tank on peak of these.^[12]
- Placing the tank upside downwardly volition give you direct access to the flush valve on the bottom of the tank.
4
Unscrew the locknut on the bottom of the tank and remove the valve. This is the large nut in the eye of the tank that holds the flush valve in identify. In one case you've unscrewed the locknut, simply push button on the flush valve to pop it out.^[13]
- For best results, use a plumber's wrench to unscrew the locknut.
v
Place the new flush valve in the spot where the former valve was. Push button the new affluent valve down against the tank opening to install it. Follow the manufacturer's instructions to ensure you install the new valve properly.^[xiv]
- You tin can purchase a new flush valve at whatever retailer that sells dwelling improvement supplies.
half dozen

Tighten the locknut with a monkey wrench to complete the installation. Reattach any parts of the flush valve that you asunder when you were removing the former one. Be sure to supersede the gasket over the locknut, every bit well.^[fifteen]
7
Place the tank dorsum on the toilet and tighten the bolts. Tighten the nuts that you previously loosened that affix the tank to the supply tube and to the toilet bowl. Once the tank has been reattached, you tin turn the water supply back on and refill the tank.^[16]
- Once the installation is complete, flush the tank to ensure that the leak is fully gone. If it isn't gone, check to make sure the leak isn't coming from somewhere else.
- If water is all the same leaking into the toilet bowl, go back and brand sure you've fully tightened the bolts attached the affluent valve.

1
Turn off the toilet'due south water supply and remove the h2o from the tank. Turn the water supply valve in back of the toilet all the way clockwise to turn off the supply.^[17] Remove the water from the tank by flushing the toilet once the water's been turned off.^[18]
- You can besides use a cup or a shop vac to get the h2o out of the tank.
ii
Disconnect the water supply tube behind the tank. This is the tube immediately beneath the location of the fill up valve underneath the tank. Employ a wrench to plough this tube counterclockwise to disconnect it.^[19]
- Depending on your toilet model, the supply tube volition either be a long, rigid pipe or a short tube connected to the h2o supply shutoff valve.
3
Unscrew the locknut attached to the fill valve on the lesser of the tank. This is the nut located underneath the tank that holds the fill valve in place. Apply a minor wrench or pair of pliers to loosen and remove the locknut.^[20]
- The locknut is virtually probable located correct next to the supply tube.
4
Remove the erstwhile make full valve through the superlative of the tank. Take the hat off of the top of the tank, if yous haven't already. Pull the old valve direct upwards in club to remove information technology from the tank.^[21]
- Be certain yous've removed all the water from the tank before you do this.^[22] If you remove the fill valve with h2o still in the bottom of the tank, that water will fall out of the hole where the fill valve used to be and end upward on the bath floor.
v
Place the new fill valve in the tank and install it per its instructions. Put the new fill valve in the spot where y'all just removed the former valve and screw the locknut onto the lesser of it. Exist sure to attach the refill tube to the side of the fill up valve and orient information technology over the overflow tube in the tank.^[23]
- Notation that the instructions volition also include guidelines for how high the fill valve'southward float will need to be.
six
Reattach the water supply tube backside the tank and plough on the h2o. One time the water supply has been turned dorsum on, flush the toilet to test the new fill up valve. If information technology fills correctly and doesn't overflow, it'south stock-still.^[24]
- If you're still experiencing bug with h2o leakage, your toilet may have a more serious problem. Telephone call a plumber to have them diagnose the trouble and see if it tin be repaired.

1
Turn off the h2o and empty the h2o out of the tank. Turn the h2o supply valve behind the toilet clockwise to turn off the water supply. Once the h2o's been turned off, flush the toilet to empty out the tank.^[25]
- You lot tin also use a loving cup or a store vac to go the h2o out of the tank.
2

Locate the bolts in the tank that connect the tank to the bowl. These are the 2 or iii bolt heads surrounding the flapper in the lesser of the tank. You'll recognize the bolts by the rubber washers underneath them.^[26]
3
Utilize an adjustable wrench and screwdriver to tighten these bolts. Utilise a flathead screwdriver to hold the bolts in identify. And then, with the adjustable wrench, turn the bolts clockwise underneath the tank to tighten them.^[27]
- Tightening the bolts should preclude h2o from seeping out from underneath the tank.
4
Refill the tank and check for leaks coming from the bolts. Turn the water supply back on to allow the tank to refill.^[28] Await a few minutes, and so look underneath the tank to see if information technology'due south nonetheless leaking. If there'southward no more than leak, the gasket has been stock-still.^[29]
- If at that place is however a leak, the washers underneath the bolts in the tank will need to be replaced.

Add New Question

Question

Can a toilet leak without you knowing?

James Schuelke, along with his twin brother David, is the co-possessor of the Twin Home Experts, a licensed plumbing, leak detection, and mold inspection company based in Los Angeles, California. James has over 32 years of domicile service and business plumbing experience and has expanded the Twin Home Experts to Phoenix, Arizona and the Pacific Northwest.

Professional Plumber

Adept Answer

Yeah, especially if the leak is in the tank. To run into if your toilet tank is leaking, lift the lid on your tank and check if the h2o level has gone up or down. This might hateful water is leaking into or out of you tank.
Question

How do you know what part of the toilet to replace?

David Balkan
Professional Plumber & CEO of Balkan Sewer & Water Master

David Balkan is a Professional Plumber, CEO of Balkan Sewer and Water Primary Service, and President of Balkan Sewer and Drain Cleaning. As a hands-on owner of these companies for over 40 years, David is knowledgeable most water service lines, sewers, and drain line issues. David is a Committee Chairman of the Master Plumbers Council and has sat on the Executive Committee of the Sub Surface Plumbers Association of New York for over 30 years. His knowledge and solution-oriented approach contributed to Balkan Sewer and Water Main Service existence the largest and near trusted service in New York City and the recipient of the 2017 Angie'southward List Super Service Honor.

Professional Plumber & CEO of Balkan Sewer & H2o Main

Adept Answer

If yous're not sure, merely buy a kit with all the pieces—they're pretty inexpensive. Then, only turn off the water supply and bandy everything out. That way, you don't lose hours trying to figure out if information technology'southward a washer, or a spring, or some other small part.
Question

My toilet is leaking where the water supply line enters the tank. How do I fix it?

Either the washer within the tank is flawed or the nut underneath is non tight enough. Turn the water valve to the toilet off at the supply, either at the wall or floor. Then affluent the toilet. The tank will now just have a couple inches of h2o. Endeavor to turn the flush valve gently. If it moves like shooting fish in a barrel and you practise not meet the washer squeeze out or a break in the washer, simply tighten the nut underneath the tank. You can purchase a new flush valve for around $20.

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Things You'll Need

Marker or pencil
Food coloring or dye tablet
Adjustable wrench
Flathead screwdriver
Monkey wrench
New affluent valve (if needed)
New fill valve (if needed)

About This Article

Article Summary X

To set a leaky toilet, starting time past running a few simple tests to figure out what's causing the leak. For example, the source of your leak might be the affluent valve, fill valve, or gasket, and the fix for each type is unlike. Once you know what kind of leak you're dealing with, you can address it! Flush valves normally need to be replaced, which yous can exercise easily with a wrench. Gaskets typically demand to be tightened with a wrench, just you'll also need a screwdriver to complete the job. Finally, a leaky make full valve can be stock-still with a replacement valve. Be certain to turn the water supply to the toilet off before y'all attempt any repairs! To learn more most how to set up your specific leak, go along reading!

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