Re: Pressure reducing valve
Posted by hj on August 08, 2001 at 09:09:36:
In response to Re: Pressure reducing valve
The valve is probably defective or stuck and therefore not working. If it is stuck that will also cause the singing sound as the water forces its way through the valve. I would replace it rather than try to repair it.

: I own a house that is about 40 years old. There is a pressure reducing valve on the main line which runs through the garage. When a toilet is flushed, there is a "singing" noise at the valve. What is causing this? Today I purchased a gauge to check the pressure. It is the same before the valve (at a hose bibb adjacent to the main shutoff) and after the valve, in the back of the house. The pressure is about 90 p.s.i. Is this too high? I havn't attempted to adjust the valve since I am unfamiliar with them. Any help will be appreciated. Thanks.

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