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Author:
SMarsh14 (IL)
Woke up in the middle of the night from a squeaking noise that happened once every 10 seconds or so. I found it to be coming from the toilet. I could hear what sounded like a little running water each time. I turned the water off and all sounds stopped. So obviously, I think to myself "I'll just leave the water off over night, check the tank level and probably have to change out the flapper or something tomorrow."
Only problem is the next morning, the tank was still full. I turn the water on and immediately the running water sound comes back. And while the squeaking noise stopped, every time we turn water on elsewhere in the bathroom (sink or shower), there is a very hard shriek coming from the toilet when the water is abruptly turned off.
Is there any reason for water to be running in a toilet if I'm not losing a level? If so, I guess I'm at a loss as to where the water could be going.
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Author:
Paul48 (CT)
Regarding the tank level...Is the water running over and into the overflow? Is the overflow tube shoved too far down the overflow? It should be at the top, or it may siphon the water from the tank into the overflow.
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Author:
Wheelchair (IL)
A dye test will prove that your tank's fill valve is working overtime. It may need cleaning or replacement. Do you have high pressure in your water supply?
Best Wishes
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Author:
Paul48 (CT)
The tank was full the next day....Probably not a leaky flapper.
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Author:
bernabeu (SC)
misadjusted or bad fill valve 'running'
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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
KCRoto (MO)
Water pressure rises overnight slightly from water towers being topped off and reduced water usage during the nighttime hours provided that you don't have a prv; if you do have a prv and no expansion tank on the hot water heater, it can increase the system pressure dramatically as well. The added pressure on an old fill valve would account for the running water and the noise. The full tank indicates the same, as well as a tightly fitting flapper that isn't leaking. Change your fill valve and get your house pressure checked. Anything over about 60 psi should have a pressure reducing valve, and you will need a thermal expansion tank on the hot water tank at the same time. I have seen this hit a whole neighborhood at almost the same time, when the city increased the water pressure in the mains instead of digging up and replacing the undersized lines.
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