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Discussion Starter #1
One of the urinals in my restaurant's bathroom keeps flushing. I assume the valve must be stuck open. I've fixed tank toilets that continue to run (replacing the flap), but this doesn't have that.

Dare I attempt or should I call a plumber?
 

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One of the urinals in my restaurant's bathroom keeps flushing. I assume the valve must be stuck open. I've fixed tank toilets that continue to run (replacing the flap), but this doesn't have that.

Dare I attempt or should I call a plumber?
Turn the screw Joe references clockwise to turn off the water.
Now try to flush it a couple times to relieve the pressure. Now you can attempt to remove the top dome on the flush valve. They can be very stubborn. Once inside, you can pull the diaphragm and rinse it really well to remove any debris. Also, slowly turn on the water to allow it to overflow out of the body- this will help flush more debris out. Reassemble and try it. If you don't feel confident doing these steps or it doesn't cure it, or you can't get it apart, then yes, call a plumber
 

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Non stop flushing

First off, you must turn off your water when working on any type of flush valve. The relief valve may not be seating properly or the bypass orifice is clogged of foreign material. There also may be an invisible gelatinous film from over-treated water. Usually a flush valve repair kit for the specific model will alleviate the problem
 

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Discussion Starter #6
I got the valve apart, cleaned it out, and got it back together without leftover parts. That didn't fix the problem; after the first flush it continued running.

Should a new diaphragm fix it?
 

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yes it should
 

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It should, did you see any other parts thet look messed up?
 

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Discussion Starter #9
Nothing looks messed up... The cleaning didn't fix it and it didn't look dirty to begin with. I picked up a repair kit at a janitor supply store I use. After dinner I will put it in.
 
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