04-27-2009, 11:24 PM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 4,977
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Thanked 102 Times in 102 Posts
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check the tightness of the valve packing and gland nut. the valve stem may be brass. as the water flowing through the valve heats up, the brass expands. the stem washer is about 3/16" away from its seat and acts as a venturi to water flow. a difference in pressure will cause a vibration.
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