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How to stop a toilet from flushing on its own

Every once in a while I hear the stool refilling the tank when it has not been used.

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What is happening is that water is seeping out of the toilet quietly until the level drops low enough in the tank thus causing it to refill on its own. Solution replace the flapper.

Posted on Jan 30, 2013


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Toilet tank is refilling slowly.

Hi AaronYC,

I'm Harvey the Master Plumbe.

Your problem is: Installed a new American Standard Cadet 3 toilet bowl and tank at home. When you turn the water supply on, the tank refills normally and stops normally. After you flush, the refill is very slow. When it refills normally the water comes out from the bottom of the pipe (i.e. the pipe that houses the float cup) and when it is refilling slowly, it comes from the top of the pipe. Sometimes (but not always), you can shut the water supply off and when you turn it back on, the flow of water goes from slow to fast instantly - but you haven't been able to recreate this consistently.

These are the facts. American Standard has been keeping costs down by out sourceing. Their toilets are now built in third world countries and parts are made cheap. They're all doing it. Quality control is pretty good but your toilet came with a bad "ballcock". That's the refill part on the left. Because it's new, if you take the ball **** back to place of purchase they should give you new. If not, they cost less than $ 10.00 and easy to replace.

Feel free contact me again!
Please give me a rating here at before you sign off
Thank you,
Harvey your Master Plumber

Posted on Sep 14, 2008

  • 14 Answers

SOURCE: Toto Toilet - no water flow to refill tank after flush

Remove the tank lid and look at the fill valve. Is it a yellow valve?
This fill valve is common on the Toto Toilets and can easliy plug with debrie.

They can be disassmbled and cleaned. however, I usually just replace the valve with Fluid Master Fill valve.
You will also want to check the water coming into the toilet by turning off the water that supplies the toilet and disconnecting the water supply line. After removing the water supply line turn on the water at the valve to make sure that the water is flowing properly. Check the supply line also to make sure it is not plugged.
Be sure and place a small container to catch the water that will come from the valve. A towell will also help from making too much of a mess.
If the Supply line and the valve are clear the problem is in the fill valve.
The G-Max system denotes the Flushiing system which is a 3" flapper that allows the water from the tank to flow into the bowl quicker.
Good Toilets!


Posted on Jan 10, 2009

  • 1 Answer

SOURCE: Toilet Refills Every 15-Minutes

I have minute amount of leakage into the bowl causing mold to grow. I believe that it may be the rubber seal for the flapper body to the porcelain.

Posted on Jan 10, 2009

  • 1 Answer

SOURCE: toilet tank will not refill with water after flushing

I fixed the problem. There was a clog in the pipes so i just flushe dthe pipes out.
for your help

Posted on Jan 18, 2009

  • 17 Answers

SOURCE: toilet bowl gurgles after flushing cycle

Sounds like your toilet is not vented properly. Possilbly something caught in the trap is causing it to syphon

Posted on Jan 23, 2010

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1 Answer

Toilet stools whistle after flushing

This could be caused by the sound of water jetting into the water tank. Just open the tap to the water tank slightly more until the whistling stops. The flusher valve in the tank may be leaking, causing the water jet to open again and the whistling noise.

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sounds like the valve is making the noise. You will need to replace it to stop the sound. The valve is the part of the stool that is located in the tank, the water supply connects to the bottom of it, and it lets the water refill the tank until the float turns it off.

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The arm to the float broke off,so I purchased a float valve repair kit ("Fits" Eljer Toilet Part - Float Valve Repair Kit - #495-0189-00 ). However, I cannot for the ife of me figure out how...

Look under the stool for the water valve coming out of the wall and turn it clockwise till it stops turning. This will turn the water off. Flush the stool and get all the water out of the tank as possible.
Look where the water hose goes to the bottom of the stool tank. You will have to take the hose loose with a pair off big water pump pliers or crescent wrench.
After taking the hose loose from the stool, there will be a big nut just above where you took the hose off the tank. You will have to look under the tank to see this nut. Use the same wrench to take this nut loose. You may have to hold on to the old valve.
Once you get this nut off, the valve will be loose from the tank, and you will have a little water leak out of the tank which you can catch with a big towel.
You should be home free from here. Put the new one back in reverse order.

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1 Answer

The toilet keeps running. I tried adjusting the float, I dont know what to do.

You will probably need to change the entire valve. Get a new valve that has a built in float and you can take all those old faulty parts out. Turn the water valve off under the stool, flush the stool once maybe twice to get all the water out of the tank. Have a big towel ready, because when you take the valve loose from the stool you will have a little water escape out the hole. The nut that holds the valve to the tank is under the tank. You will also have to take the supply water line loose from the valve.. You should probably go ahead and change the rubber flapper , which is located in the center of the inside of the tank. A new valve and flapper can be purchased at any hardware store.

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How to stop a continuing slight bit of water entering the bowl. A plumber put a new unit in the tank about 3 month ago, but I do not think he put a new flapper.

Sounds like you need a new flapper. You can do this yourself. Just turn the water valve off down below the stool, flush the stool to get all the water out of the tank as possible, take the top of the tank off, reach down and disconnect the flapper. It is located in the center at the bottom of the tank. You can get a new one at Home Depot, wal mart , Lowes or any hardware store.

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My Sani-compact toilet flushes on its own periodically. Why is this happening?

The seal at the bottom of the tank is leaking. Usually the call this a flapper. Take the top off the tank and look directly to the bottom of the tank in the center. Flush the stool and you will see the flapper rise and then fall. You probably need to replace the flapper. To do this just turn the water off to the stool, flush it to get all the water out of the tank, reach your hand in the tank and disconnect the flapper and now you can take it to most hardware stores and get another one.

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1 Answer

After toilet flushes tank does not refill

If it has a flapper in the bottom of the tank, the flapper is probably stuck open due to something restricting it or may be just worn out. Take the top of the tank and look directly down at the center. Flush the stool and you will see the flapper come up. A few seconds it should go back down and seal the outlet.

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After flush tank refills very slowly---is there a restictor that can be removed ..what color is it tell me what to do

probably not. your valve is corroded or stopped up. It pretty easy to change and you can buy one at most hardware stores.
(1) turn the water off to the stool
(2) unscrew the inlet hose coming from the wall to the stool valve (under the tank usually on the left)
(3) unscrew the big plastic nut holding the valve to the tank (the nut is under the tank) ( be sure to flush the stool and get as much water out of the tank before unscrewing the nut. Get a large towel or bowl as you will have some water leak from the tank when you pull the valve out.
(4) disconnect the overflow line coming from the valve to the center line in the tank. (this is just usually a little rubber hose about 1/4" around. You are ready to go get another valve. You might take the old one with you.

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1 Answer

Eijer toilet shooting water out of the tank

There is a shut off valve under the stool. turn the water off and go to walmart and get a new valve. Take the one out of your stool so you get the right one. hope i was helpful

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1 Answer

Toilet flushes weakly and two times

After working for ROTO-ROOTER for 20 + years, I have come across this problem more than twice. There are many problems that can be included, but let's start with the most simple and go from there. Step 1... Check your roof vent to see if it is obstructed with debris, such as birds nest, frozen ice, dead animal...etc..... To check this you must go onto the roof and find the sewer vent(it is not hard to find as it smells like sewer). Visually look into the vent even using a flashlight to make sure there is nothing obstructing the vent pipe. certain things can clog your vent such as Debris,Birbs Nest, Ice, dead animal,Etc..A drain line needs a air vent so water can flow....If nothing is visually seen , have someone flush the stool. If you cannot see any obstructions and HEAR THE FLUSH, Your Vent is okay. Check out plumbing and venting on the internet for more reference. If this is not your problem then you must pull the stool and see if there is an object stuck in the toilet......Comb, toothbrush, Etc... The best way is to pull the stool from the floor and look from the bottom of the toilet to see if there is an object stuck inside the stool.Turn off the water supply and disconnect it from the tank. Go to your local hardware store and buy 2 wax rings with plastic flanges and a set of flange bolts(these are cheap and can be returned if not used).Turn off the water supply to the toilet tank and flush it to drain all the water from the tank and the stool. You can use a shop vac or an old towel to remove the water. After removing the stool, lay it on its side and look from the bottom to see if there are any obstructions. You may need a mirror and flashlight to see inside the gooseneck of the stool. If you cannot see any obstructions, you can try to dump a 5 gallon bucket of water through the bottom of the stool to push the object out the way it entered. NOTE: When reinstalli8ng the stool, be careful not to over-tighten the floor flange bolts as you might crack the toilet......Joe

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