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Posted by Speedy Jim on June 25, 2007, 8:40 pm
njhomeowner@yahoo.com wrote:
> Hello,
>
> A few months ago I re piped my house using wirsbo pex for water. As
> part of this re-piping I also re-fed the hot water heater using 6"
> sections of copper with unions and a copper to pex tee. The water then
> comes off the heater horizontally from this tee and goes to feed the
> house
>
> Recentley I noticed a clicking noise coming from the water heater
> whenever I turn on the hot or cold water. The clicking volume is
> related to the speed at which I start or stop the water. If I shut the
> water fast it clicks loudly. The sound is coming from the entry and
> exit points for the water on the top of the unit. I did not sweat any
> of the connections while they were threaded on the unit (I know this
> can damage the di-electric fittings)
>
> The water heater is a natural gas GE unit bought from Home Depot.
> Any thoughts or suggestions on what this is?
>
> Thanks in advance
>
It's probably equipped with "heat trap" ball check valves.
See:
http://www.dmme.virginia.gov/De/hbchap6.html
(scroll down)
Jim
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