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wrencho 05-11-2008 05:45 PM

Squealing noise when water pipes shut off
Just opened the valve to the outside faucet. Now all pipes - washer, toilets etc, make a squealing noise when the water shuts off.


Mike Swearingen 05-12-2008 12:50 AM

Sounds like you may just have a faulty water inlet valve in a toilet tank. Turn the water off to each toilet one by one to find it, and then replace the valve with a Fluidmaster 400A float-cup type. They are very inexpensive and have easy illustrated installation directions.
Good Luck!

mstplumber 05-12-2008 10:01 PM


Something else to check is wheter or not you have a vacuum breaker attached to the hosebibb (the faucet). This will be a brass fitting that is screwed onto the hosebibb where the hose attaches. It is designed to prevent water from flowing back into your house system in the event of a problem. Sometimes a bad vacuum breaker will cause a loud whine or hum hroughout the water system when something is running.

If your hosebibbs have the vacuum breakers attached, temporarily removing them will let you find out if this is the problem. If so, just get some new ones and screw them on. The old ones may have a set screw in them which will need to be drilled out in order to remove them. This is fairly simple to do, just don't drill too deep.

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