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Old 04-24-2007, 07:28 PM
Jerry Peck Jerry Peck is offline
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Join Date: Mar 2007
Location: Ormond Beach, Florida
Posts: 8,238
Re: Water heater valve
That's a pressure relief valve.

The knob turns and adjust (within limits) the setting of the valve.
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Jerry Peck, Construction / Litigation Consultant
Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
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