So a coworker tell me that in her new townhouse that she bought that the upstairs toilet when flushed will run until you turn on the faucet. So if you let the tank fill it keeps running turn on the faucet it stops. if you flush turn on the faucet it will stop but if you flush and don’t turn on the faucet it will run forever. she has talked to neighbors who have the same problem. anyone ever hear of something like that and what is the fix?
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I'm going to take a guess at what's happening, but I've never seen it before. Maybe the float valve is unable to stop the incoming water while it's at full pressure. Opening a faucet lowers the pressure at the float valve allowing it to do its job.
An easy way to test this idea is to close the toilet shutoff valve a little bit so the toilet fills slower. This should the same effect as opening a faucet.
Be aware that some shutoff valves are prone to leaking if they're not all the way open or closed.
that is what i was thinking but i wanted to check to see what others thought. i will pass along the info thanks guys
I have high pressure, about 110-120 and never had a problem with the fill valve not being about to stop, that I remember. They all have long bee replaced with fluidmasters.However I have had problem with the water flow in so fast and back out the flush valve that the turbulance will keep the flush valve from closing.Observing the tank with the top should help tell what is happening.Another possibility is that someone set the fillvalves to within 1/64" of the overflow. And with the extra pressure it moves the move the setpoint just enough cause it to over flow.But this brings up something else.seems that the plumbing must be way undersized so that opening a vanity faucet is enough to "fix it"..
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A-holes. Hey every group has to have one. And I have been elected to be the one. I should make that my tagline.
so if they turn the angel stop down will that do anything ?
Yeah, first step is to lift the top off the toilet when it's running and see what's going on. Generally the tank will either be almost empty, and the flush valve isn't seating, or it will be almost full and the fill valve isn't shutting off. Depending on which it is you make different adjustments.
Guess that'll get them to wash their hands!
Sorry I can't add anything, just had to state the obvious joke here.
Bend the float rod downwards so that more of the float is submerged when the tank is full. That will put more force on the shutoff valve and close it completely.
Dinosaur
How now, Mighty Sauron, that thou art not brought
low by this? For thine evil pales before that which
foolish men call Justice....