Hissing Sound @ Faucet and Shower?

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  #1  
Old 02-05-03, 11:28 AM
smitchell
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Question Hissing Sound @ Faucet and Shower?

When the water heater (located in garage) is heating water, the sink faucet and the shower knob in the bedroom at the opposite end of the house consistently makes a loud hissing sound. When I turn the water heater off and after the water cools down, this horrible noise is drastically reduced. All other fixtures in the house are always quiet, whether water heater is on or off. Though I can find no water that shows evidence of a leak, can this noise be generated from a leak in the plumbing?

This problem has got me baffled.
Can someone help?

Many Thanks!
 
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  #2  
Old 02-06-03, 02:52 AM
Mike Swearingen's Avatar
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Cool

If you are on public water and have a pressure reducing valve, that creates a closed system.
If you don't have an expansion tank on your water heater, the extra pressure generated from heated water may be escaping from worn faucet valve seals.
What type of faucets do you have in that bathroom?
Brand? Single-handle? Dual handle?
Let us know, and we'll try to help you repair them.
Mike
 
  #3  
Old 02-07-03, 09:55 AM
smitchell
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Thanks for your help -
I had a plumber come in and look at the problem. Bad news - major leak under the slab. A constant hot floor and hot concrete outside is strong evidence that I am loosing heated water to the outside world.

Does a jack hammer fit under a bathroom vanity? .... looks like i'll be busy.

Thanks agian for your help.
 
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