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drhowarddrfine 10-17-2006 02:20 PM

Pipes squealing
 
Last week, I heard a squeal coming from the pipe leading into the house over to the hot water heater, but not the heater itself. I'm not sure of the exact point. The squeal starts whenever any water in the house is turned on and stops immediately when turned off. This continued while I was out of town.

When I came back five days later, the squeal quieted, then went away. About two days later, it seems that any water faucet that is turned on starts with a slight 'rush' then returns to normal.

What could this be?

majakdragon 10-17-2006 05:37 PM

I would have to guess that it is air in your lines. Sometimes this is caused by a bad seal in a fixtures shut-off handle. When one fixture is turned on and the pressure to the bad fixture is reduced, this allows air to get sucked into the line. Do you have any sinks that drip constantly? This would be the first fixture I would check. Bad washers on a washing machine hose will also cause this. Trying to find the bad spot is nerve racking. One way to check things out is to turn off one supply line (under sinks etc)at a time for a period of time and see if the problem goes away.

Ron The Plumber 10-17-2006 07:25 PM

Does it seem like the water pressure is higher then normal, high pressure passing though pipes and faucets can make high pitched sounds.

drhowarddrfine 10-17-2006 08:05 PM

Remember that the squeal has gone away. The higher pressure started a day or two after the squeal went away so I don't know if the two are related.

Is it possible the pressure regulator at the entry point has failed? Do they make noises like that?

Ron The Plumber 10-17-2006 08:09 PM

Test the pressure on house, if it's 80 psi or higher, it's too high, like I say high pressure can make noises in the pipes, there is a guage you can get that connects directly to an outside faucet. There is a possibility the regulator has failed.

Double A 10-23-2006 12:39 AM

Quote:

Originally Posted by drhowarddrfine (Post 21080)
When I came back five days later, the squeal quieted, then went away. About two days later, it seems that any water faucet that is turned on starts with a slight 'rush' then returns to normal.

What could this be?

Rush returns to normal can be the water heater building up pressure in the lines if the regulator does not have a bypass or has a clogged bypass on it. Test the pressure to the house.

This can also be caused by a partially blocked strainer in the regulator or galvanized pipes with a fair amount of corrosion in them.


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