02-07-2008, 04:15 PM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 3,591
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Another possibility is if your house has a WHOLE HOUSE WATER TEMPERING VALVE. What this does is mix cold water with the hot water' heater's output to prevent scalding at ANY of the houses hot water taps. Used to be a tempering valve right at the shower valve.
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