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Old 05-20-2015, 09:38 AM   #1
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Toilet Whine Issue


We had a new toilet installed last fall, and ever since we've had an issue where the toilet gives a short whine for a couple seconds after the water in the tank fills.

What is odd is that it does not make this noise if the top of the tank is off. It seems to make the noise more when the tank top is pushed toward the back. For example if you lean back when seated and the top slides back a little. Sometimes it still makes the noise no matter how the top is seated but always does not when the top is off.

It doesn't matter if the toilet seat is up or down.

The plumber who installed the toilet replaced the fill valve, but that did not solve the issue.

Any other thoughts? Thanks!
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Old 05-20-2015, 10:45 AM   #2
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The noise is not coming from the stop valve is it?
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Old 05-20-2015, 11:08 AM   #3
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I would of suggested the fill valve as well but your plumber already replaced it, so that's ruled out. Try to narrow down where the whining is actually coming from. Report back with results. Thanks.

Check and make sure the shut off valve is fully opened. Check for low flow washer/blockage in supply line, (not very likely) or try another supply line.

Others will be along with more suggestions.
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Old 05-20-2015, 01:59 PM   #4
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Ok long shot here …. Air is being compressed by the water filling up the tank and what you hear is the release of pressure passing under the tank lid?
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Old 05-20-2015, 02:41 PM   #5
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Quote:
Originally Posted by BrowneBearLLC View Post
Ok long shot here . Air is being compressed by the water filling up the tank and what you hear is the release of pressure passing under the tank lid?
Tank lids are designed specifically to admit air flow so the flush isn't hindered by a vacuum buildup.
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Old 05-21-2015, 09:26 AM   #6
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Of course now the toilet is not whining. We have the tank lid pushed all the way forward as far as it can go and this seems to have helped.

Still seems like a strange issue.
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