Water leaking in Toilet bowl

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piratey

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One of my toilets has a leak. If you look closely, you can see water slowly running down the very back of the toilet bowl, from the water tank. It's pretty slow for now, but it disturbs the water just enough to make it visible. It's also wasting water, since it leaks non-stop.

I had a much worse leak in the same toilet about 5 years ago and fixed it with a universal kit from Home Depot, something like this:
https://www.homedepot.com/p/Korky-QuietFILL-Platinum-Valve-and-Flapper-Kit-818MCM/205616927

Do I need to do this again or is this a seperate problem?
 
One of my toilets has a leak. If you look closely, you can see water slowly running down the very back of the toilet bowl, from the water tank. It's pretty slow for now, but it disturbs the water just enough to make it visible. It's also wasting water, since it leaks non-stop.

I had a much worse leak in the same toilet about 5 years ago and fixed it with a universal kit from Home Depot, something like this:
https://www.homedepot.com/p/Korky-QuietFILL-Platinum-Valve-and-Flapper-Kit-818MCM/205616927

Do I need to do this again or is this a seperate problem?
I am assuming that the leak you describe is water leaking INTO the bowl.

If that is the case, 90 % of the time, you simply need a new flapper. It installs over the existing overflow pipe, and is what lifts up when you flush the toilet. A few dollars and 2 minutes of work is all that it takes. After you are done, you may want to put a few drops of food coloring into the water in the tank, wait an hour, and then look to see if any colored water is in your bowl. If not, you no longer have a leak.
 
I am assuming that the leak you describe is water leaking INTO the bowl.

If that is the case, 90 % of the time, you simply need a new flapper. It installs over the existing overflow pipe, and is what lifts up when you flush the toilet. A few dollars and 2 minutes of work is all that it takes. After you are done, you may want to put a few drops of food coloring into the water in the tank, wait an hour, and then look to see if any colored water is in your bowl. If not, you no longer have a leak.

Yes, it is leaking into the toilet. I replaced the flapper and there is still water leaking. My next two options are to replace the flush valve or the fill value and I don't know which one to do. I replaced the fill valve about 5 years ago. Any recommendations on how to determine whether it is the fill valve or flush valve/gasket that is the problem?
 
The flush valve will get worn from sand or debris in the water.
 
The valve is leaking a bit and dumping water in the overflow, adjust the level down a bit and perhaps the valve will close better
 
Yes, it is leaking into the toilet. I replaced the flapper and there is still water leaking. My next two options are to replace the flush valve or the fill value and I don't know which one to do. I replaced the fill valve about 5 years ago. Any recommendations on how to determine whether it is the fill valve or flush valve/gasket that is the problem?
It may simply be an adjustment.

When you flush the toilet and it refills the tank, the float (part of the fill valve) should shut off the water when the water level in the tank is about 1 inch below the top of the overflow tube. The float is adjustable. If that is adjusted correctly, I would flush the toilet, watch it fill to the correct level, and then walk away for an hour or overnight. Then, without flushing, notice if the water level has risen such that it is above the top of the overflow tube. If that is happening, it means that your fill valve is not shutting the water off completely, and should be replaced.

If that is not the issue, I would suggest again flushing the toilet, allowing it to refill, and then shutting off the valve behind the toilet, and walk away for an hour or overnight. When you come back, see if the water level has gone down. If it has, it means that the flush valve is leaking and should be replaced.

Hope that helps.
 
Turn the water off to the toilet. If the tank drains out the water is coming through the gasket or more likely past the flapper. If the flapper is new, did you clean the mating surface where it closes? Sometime debris can collect there and keep the flapper from sealing. Also, the chain can be too tight and prevents the flapper from sealing.

If the water doesn't leak out of the tank, then you likely have a bad filler and water is coming out of the anti-siphon. Replacing the tank bolts, gaskets, filler and flapper isn't a bad idea. If you're handy it is a $20 tune-up and takes 20 minutes.
 
Thank you all for your suggestions. I followed them and discovered that it was indeed the fill valve that was my problem. It was leaking a bit and water ended up going into the overflow tube and into the toilet bowl. I replaced it and everything looks good. Thanks again!
 
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