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| Expansion Tank Noise | Rate Topic |
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| Posted: Wed Mar 3rd, 2010 05:45 pm |
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1st Post |
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richardstr Member
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Hi, I have a standard gas fired direct vent hot water heater. I recently had whining/knocking noises from different parts of the house. Plumber came and replaced the pressure valve. Still noise. During second visit plumber realizes noise is due to expansion tank. I am not sure if he drained it or adjusted the pressure or what he did. The fix worked for a couple of months. Now the noise is coming back. I am reluctant to call the same plumber back, and am wondering if this is something I can fix myself. (I am VERY handy.) Thank you for any input. Last edited on Wed Mar 3rd, 2010 06:43 pm by richardstr |
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| Posted: Thu Mar 4th, 2010 07:51 am |
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2nd Post |
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eleent Member 
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Hello: Get a pressure gauge and hook it up to the heater drain or to a bibb outside, but downstream of the pressure reducer. let us know what sort of readings you get, especially when the heater is working. Yours, Larry
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| Posted: Fri Mar 5th, 2010 09:47 am |
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3rd Post |
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undee70ss Member 
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Get a lazy pointer gauge, that way you can leave it on for a while and can find out what was the max pressure reached.
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