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Thread: Toilet shut off valve no longer letting water in after I shut it to do some work

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  1. #1
    DIY Senior Member mnalep's Avatar
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    Default Toilet shut off valve no longer letting water in after I shut it to do some work

    I have a need for some advice.

    I closed the supply line shutoff valve to the toilet this morning. Just wanted to clean the bowl. (I should have just left it alone)

    But when I opened the supply valve back up, no water is filling the tank? I tried several times to open/close/open, and the first few times I opened it I saw/heard a tiny amount of water enter the tank. I also heard a vibration/hum in the pipes if I opened valve just a little, but that is gone now too.

    This had been functioning before I shut the supply valve. (Although the valve always has been a bit noisy, and slow - like 3 - 4 minutes to fill the tank).

    I manually filled the tank back up hoping that might get the supply flowing, but no luck.

    Do I have a bad valve? Air in line? Help?






  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
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    Undo the supply line to the tank and see if any water comes out the end.
    If not, then you need a new shutoff.

    If water does come out the end, then it may be the fill valve.

    I'm betting it's the shutoff.

  3. #3
    DIY Senior Member mnalep's Avatar
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    Hi Terry, Guess what. I had to go use the toilet, and without thinking hit the flusher. And now the tank is filling up. I had left the valve open when I posted earlier. Kind of wierd, huh?

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    DIY Senior Member mnalep's Avatar
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    I just that realized that this is your forum. Great job! This is really cool! Thanks.

  5. #5
    Senior Robin Hood Guy Ian Gills's Avatar
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    Glad it worked out for you but use this opportunity as a good time to identify a plumber who could replace that shut-off valve and supply line for you. They are both showing signs of wear.

  6. #6
    In the Trades Gary Swart's Avatar
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    Just a tag onto Ian's comment. Replace the valve with a 1/4 turn type and the supply line with a braided stainless seal mesh. Something caused the water not to flow and probably cleared itself temporarily. Not a difficult DIY job. Stay away from the flood guard supply lines, they are trouble waiting to happen.

  7. #7
    DIY Senior Member mnalep's Avatar
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    Thanks guys.

    Is that short piece of copper tubing under the valve and above that 90 degree elbow typical. The elbow is on another copper tube coming out of the wall, and I don't want to disturb that elbow or the line going into it .

    I went into the basement and could not even find where that toilet supply line is coming from. I see the sinks hot and cold supply lines going up into the floor, but not for the toilet.

    Could it be in the wall running out horizontally from the sink's cold water supply line?

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