Why would a waterline (To toilet) start making a loud noise & start vibrating ?


Question:Had to shut off the water line to the toilet to stop the loud noise & vibrating...but don't know what the problem is ? I could use a plumbers advice.

Answers:
I am not a plumber but air in the lines will do that. You said you had to turn the water off, air can get in, flush it several times (let fill between each)this will get the air bubbles out, and I bet the problem will resolve.


could be air in system
Several reasons could be the culprit.
The pipe may not be attached to joists or studs and moving when water is flowing, or air may be trapped in the pipe and causing it to vibrate or knock as water flows through.
If you can find the pipe ( say, in the basement or through a repair access panel), you could check to see if it's strapped down to the wood. If you can and it's not. Pipe straps are available at hardware stores. Attaching the pipe to the joists or studs might solve the problem.
If there's an air lock in the pipe and you have no plumbing experience, call a pro to fix it.
Could be 1 of 2 things , the fill valve in the toilet needs to be replaced or the shutoff valve to the toilet has a loose washer. Go to home depot and get a new fill valve. You can do it yourself with a few tools. have fun. If you have the skills I would replace the shut off valve as well as the pipe to a (flood safe ) hose. In case of something going wrong they shut off automatically , preventing a flood or water damage.
What kind of ballcock do you have?
Sounds like the diaphram is bad if it's a Fluidmaster.
Seat washer if it's the kind of ballcock that has the ball float and rod.
Probably a bad fill-valve. For under $10 you can replace it with a Fluidmaster 400A fill-valve. Really easy instructions for installing them.

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