Reply To: Envi-Ro-Temp Hot Water Heater Noise

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11 Aug 2003 at 10:38 am #294874
Avatar photoRetired plbg1
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    If you have PRV on service it could be making that noise. Turn off CW at heater and open hw to releive pressure and then flush toilet and see if it makes a noise, if not it is something else like ballcock are PRV. valve.


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